Bird List

Updated ~28 hours ago
  1. Observer
    Location

Native and Naturalized (394)

  1. # Count: 250
    Observer: John Vanderpoel
    Location: Union Reservoir
  2. # Count: 45
    Observer: John Vanderpoel
    Location: Union Reservoir
  3. # Count: 45
    Observer: Jay Hutchins
    Location: Union Reservoir
  4. # Count: 35
    Observer: John Vanderpoel
    Location: Union Reservoir
  5. # Count: 31
    Date:
    Observer: Laurie Zuckerman
    Location: Homestead on CR 128
  6. # Count: 25
    Observer: John Vanderpoel
    Location: Union Reservoir
  7. # Count: 20
    Observer: Sue Riffe
  8. # Count: 20
    Observer: John Vanderpoel
    Location: Union Reservoir
  9. # Count: 20
    Observer: John Vanderpoel
    Location: Union Reservoir
  10. # Count: 20
    Observer: Joe Kipper
  11. # Count: 19
    Observer: Sue Riffe
    Location: Loloff Reservoir
  12. # Count: 18
    Observer: Joe Kipper
    Location: Union Reservoir
  13. # Count: 17
    Observer: Sue Riffe
  14. # Count: 16
    Date:
    Observer: Forrest Rowland
  15. # Count: 14
    Observer: Joe Kipper
    Location: Union Reservoir
  16. # Count: 14
    Observer: Sue Riffe
    Location: Loloff Reservoir
  17. # Count: 11
    Observer: Brian Genge
    Location: Stewart's Pond
  18. # Count: 10
    Observer: Sue Riffe
  19. # Count: 10
    Observer: John Vanderpoel
    Location: Union Reservoir
  20. # Count: 10
    Observer: John Vanderpoel
    Location: Union Reservoir
  21. # Count: 10
    Observer: John Vanderpoel
    Location: Union Reservoir
  22. # Count: 9
    Observer: Joe Kipper
    Location: Union Reservoir
  23. # Count: 9
    Date:
    Observer: Christine Alexander
    Location: 55359 County Road 134, Grover, Colorado, US (40.96, -103.998)
  24. # Count: 9
    Observer: Sue Riffe
    Location: Loloff Reservoir
  25. # Count: 9
    Observer: John Vanderpoel
    Location: Union Reservoir
  26. # Count: 9
    Date:
    Observer: Joe Kipper
    Location: Glenmere Park
  27. # Count: 8
    Observer: John Vanderpoel
    Location: Union Reservoir
  28. # Count: 8
    Observer: Sue Riffe
  29. # Count: 7
    Observer: Steven Mlodinow
    Location: Baxter Lake
  30. # Count: 7
    Observer: David Schulte
  31. # Count: 7
    Date:
    Observer: Patricia Cullen
    Location: Windsor Lake
  32. # Count: 7
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  33. # Count: 7
    Observer: Sue Riffe
  34. # Count: 7
    Date:
    Observer: John Vanderpoel
  35. # Count: 6
    Observer: Reilly Naff
  36. # Count: 6
    Date:
    Observer: Rob Crawford
  37. # Count: 6
    Date:
    Observer: Pat Mulligan
  38. # Count: 5
    Observer: Steve Barlow
    Location: Union Reservoir
  39. # Count: 4
    Observer: Scott Dieni
  40. # Count: 4
    Observer: Sue Riffe
    Location: Loloff Reservoir
  41. # Count: 4
    Observer: Sue Riffe
  42. # Count: 4
    Observer: Sue Riffe
    Location: Loloff Reservoir
  43. # Count: 4
    Observer: Joe Kipper
    Location: Union Reservoir
  44. # Count: 4
    Observer: Matt Hofeditz
  45. # Count: 3
    Observer: Brian Genge
    Location: Stewart's Pond
  46. # Count: 3
    Observer: Patricia Cullen
    Location: Clark Lake
  47. # Count: 3
    Observer: John Vanderpoel
    Location: Union Reservoir
  48. # Count: 3
    Observer: Kelly Ormesher
  49. # Count: 3
    Observer: Winston Liu
    Location: Loloff Reservoir
  50. # Count: 3
    Observer: Kelly Ormesher
    Location: Briggsdale (town)
  51. # Count: 3
    Observer: Joe Kipper
    Location: Union Reservoir
  52. # Count: 3
    Observer: Doug Ward
    Location: Stewart's Pond
  53. # Count: 3
    Observer: Cole Wild
    Location: Windsor Reservoir
  54. # Count: 3
    Observer: Brian Genge
    Location: Stewart's Pond
  55. # Count: 3
    Observer: Adriana Jacobi 🦜
    Location: Raptor Alley
  56. # Count: 3
    Observer: John Vanderpoel
    Location: Union Reservoir
  57. # Count: 3
    Observer: Steve Barlow
    Location: Union Reservoir
  58. # Count: 3
    Observer: Steven Mlodinow
    Location: Glenmere Park
  59. # Count: 3
    Observer: Joe Kipper
    Location: Union Reservoir
  60. # Count: 3
    Observer: Nick Moore
    Location: WCR 128 x 37 Homestead
  61. # Count: 3
    Observer: Cole Wild
    Location: Highland Lake
  62. # Count: 3
    Observer: Brian Genge
    Location: Briggsdale (town)
  63. # Count: 3
    Observer: Sue Riffe
    Location: Beebe Draw area
  64. # Count: 3
    Observer: Joe Kipper
  65. # Count: 3
    Observer: John Vanderpoel
    Location: Union Reservoir
  66. # Count: 3
    Observer: Joe Kipper
    Location: Union Reservoir
  67. # Count: 2
    Observer: Cole Wild
    Location: Franklin Lake
  68. # Count: 2
    Date:
    Observer: Cole Wild
    Location: Franklin Lake
  69. # Count: 2
    Observer: Cole Wild
    Location: Windsor Reservoir
  70. # Count: 2
    Observer: Trey Rogers
  71. # Count: 2
    Observer: John Vanderpoel
    Location: Union Reservoir
  72. # Count: 2
    Observer: Sue Riffe
  73. # Count: 2
    Observer: Bill Schmoker
    Location: Stewart's Pond
  74. # Count: 2
    Observer: Cole Wild
    Location: Union Reservoir
  75. # Count: 2
    Observer: Nick Komar
  76. # Count: 2
    Observer: Sue Riffe
  77. # Count: 2
    Observer: Adrian Lakin
    Location: Home - Mead
  78. # Count: 2
    Observer: Cole Wild
    Location: Windsor Reservoir
  79. # Count: 2
    Observer: Sue Riffe
    Location: Loloff Reservoir
  80. # Count: 2
    Observer: Sue Riffe
    Location: Loloff Reservoir
  81. # Count: 2
    Observer: David Fraide
    Location: Union Reservoir
  82. # Count: 2
    Observer: Sue Riffe
    Location: Union Reservoir
  83. # Count: 2
    Observer: Sue Riffe
  84. # Count: 2
    Observer: Joe Kipper
    Location: Union Reservoir
  85. # Count: 2
    Observer: Steve Barlow
    Location: Union Reservoir
  86. # Count: 2
  87. # Count: 2
    Observer: John Vanderpoel
    Location: Union Reservoir
  88. # Count: 2
    Observer: Kelly Ormesher
    Location: Weld CR 42.5 Marsh
  89. # Count: 2
    Observer: Joe Kipper
    Location: 39792 County Road 82, Briggsdale, Colorado, US (40.581, -104.342)
  90. # Count: 2
    Observer: Steven Mlodinow
  91. # Count: 2
    Observer: robert beauchamp
    Location: Raptor Alley
  92. # Count: 2
    Observer: Joe Kipper
  93. # Count: 2
    Date:
    Observer: Gak Stonn
    Location: Ault US-CO (40.6385,-104.6250)
  94. # Count: 2
    Observer: David Fraide
    Location: Union Reservoir
  95. # Count: 2
    Observer: Kelly Ormesher
  96. # Count: 2
    Observer: Anonymous eBirder
    Location: 299 Kelly Ln, Brighton US-CO 40.00446, -104.79005
  97. # Count: 2
    Observer: Edward Raynor
  98. # Count: 2
    Observer: Joe Kipper
  99. # Count: 2
    Observer: Jeff Percell
    Location: 44741 Colorado 392, Briggsdale, Colorado, US (40.64, -104.333)
  100. # Count: 2
    Observer: Rachel Kolokoff Hopper
    Location: 56000–56638 County Road 37, Nunn US-CO 40.82075, -104.71500
  101. # Count: 2
    Observer: Jeffrey Price
  102. # Count: 2
    Date:
    Observer: Caroline Fegley
    Location: County Road 129, Raymer, Colorado, US (40.616, -103.84)
  103. # Count: 2
    Observer: Jeff Percell
    Location: 22357 Circle 37, Evans, Colorado, US (40.326, -104.716)
  104. # Count: 2
    Observer: Joe Kipper
    Location: Union Reservoir
  105. # Count: 2
    Observer: Sheridan Samano
  106. # Count: 2
    Observer: John Vanderpoel
    Location: Union Reservoir
  107. # Count: 2
    Observer: Joe Kipper
  108. # Count: 2
    Observer: Rob Crawford
  109. # Count: 1
    Observer: Cole Wild
    Location: Windsor Reservoir
  110. # Count: 1
    Observer: Mitchell Bailey
  111. # Count: 1
    Observer: Rachel Kolokoff Hopper
  112. # Count: 1
    Observer: Brandon K. Percival
  113. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  114. # Count: 1
    Observer: Jeff Percell
    Location: Stewart's Pond
  115. # Count: 1
    Observer: Kathy Mihm Dunning
    Location: Stewart's Pond
  116. # Count: 1
    Observer: Steven Mlodinow
    Location: Stewart's Pond
  117. # Count: 1
    Observer: Steven Mlodinow
  118. # Count: 1
    Observer: Sue Riffe
  119. # Count: 1
    Date:
    Observer: Jack Harlan
  120. # Count: 1
    Observer: Brian Genge
    Location: Stewart's Pond
  121. # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  122. # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  123. # Count: 1
    Observer: Cole Wild
    Location: Windsor Lake
  124. # Count: 1
    Observer: Dave Ruane
    Location: Home area (CO)
  125. # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  126. # Count: 1
    Observer: Joe Kipper
    Location: Union Reservoir
  127. # Count: 1
    Observer: Joshua Berman
    Location: Union Reservoir
  128. # Count: 1
    Observer: Sue Riffe
  129. # Count: 1
    Observer: Frank and Nancy Hatch
    Location: Lower Latham
  130. # Count: 1
    Observer: Jeff Percell
    Location: Percell Backyard, Northridge, Erie, Colorado, US (40.065, -105.042)
  131. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  132. # Count: 1
    Date:
    Observer: James Eley
    Location: Stewart's Pond
  133. # Count: 1
    Observer: Elliott Steinfels
    Location: Lochbuie Pond
  134. # Count: 1
    Observer: Steven Mlodinow
    Location: Poudre Ponds
  135. # Count: 1
    Observer: Jay Hutchins
    Location: Union Reservoir
  136. # Count: 1
    Observer: Kaleigh Keohane
  137. # Count: 1
    Date:
    Observer: carl starace
  138. # Count: 1
    Observer: Adrian Lakin
    Location: Home - Mead
  139. # Count: 1
    Observer: Joe Roller
  140. # Count: 1
    Observer: Jeff Percell
    Location: Percell Backyard, Northridge, Erie, Colorado, US (40.065, -105.042)
  141. # Count: 1
    Observer: Adrian Lakin
    Location: Home - Mead (Private location)
  142. # Count: 1
    Observer: Colorado Bird Records Committee
  143. # Count: 1
    Observer: Joe Kipper
    Location: Union Reservoir
  144. # Count: 1
    Date:
    Observer: Alexander Brown
    Location: St. Vrain SP
  145. # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
    Location: Greeley
  146. # Count: 1
    Observer: Todd Deininger
    Location: Union Reservoir
  147. # Count: 1
    Date:
    Observer: John Vanderpoel
    Location: Union Reservoir
  148. # Count: 1
    Observer: Cole Wild
    Location: Windsor Reservoir
  149. # Count: 1
    Observer: Luke Pheneger
    Location: Union Reservoir
  150. # Count: 1
    Date:
    Observer: Ric Olson
    Location: Union Reservoir
  151. # Count: 1
    Observer: John Baur
  152. # Count: 1
    Date:
    Observer: Claudia Martin-Williams
  153. # Count: 1
    Date:
    Observer: Edward Landi
  154. # Count: 1
    Observer: P P
    Location: Stewart's Pond
  155. # Count: 1
    Observer: Susan Rosine
    Location: Loloff Reservoir
  156. # Count: 1
    Observer: Rachel Kolokoff Hopper
    Location: Union Reservoir
  157. # Count: 1
    Observer: Kevin Rutherford
    Location: Union Reservoir
  158. # Count: 1
    Observer: Sue Riffe
  159. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  160. # Count: 1
    Observer: Cole Wild
    Location: Windsor Reservoir
  161. # Count: 1
    Observer: Cole Sage
    Location: Loloff Reservoir
  162. # Count: 1
    Observer: Colorado Bird Records Committee
    Location: Union Reservoir
  163. # Count: 1
    Observer: Colorado Bird Records Committee
    Location: Weld Co. Rds. 6 and 61
  164. # Count: 1
    Observer: David Dowell
    Location: Stewart's Pond
  165. # Count: 1
    Date:
    Observer: Sue Riffe
    Location: WCR 105 North of WCR 80 - Weld Cty
  166. # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  167. # Count: 1
    Date:
    Observer: Benjamin Zerante
    Location: Stewart's Pond
  168. # Count: 1
    Observer: Kelly Ormesher
    Location: Loloff Reservoir
  169. # Count: 1
    Date:
    Observer: Rob Crawford
    Location: Poudre Ponds
  170. # Count: 1
    Observer: Cole Wild
    Location: Windsor Lake
  171. # Count: 1
    Observer: Dilka Murtazina
    Location: Windsor Lake
  172. # Count: 1
    Observer: Colorado Bird Records Committee
    Location: Union Reservoir
  173. # Count: 1
    Date:
    Observer: Sean Walters
    Location: Windsor Lake
  174. # Count: 1
    Observer: Norman Erthal
    Location: St. Vrain SP
  175. # Count: 1
    Date:
    Observer: Chris Goulart
    Location: Ireland Reservoir No. 5
  176. # Count: 1
    Observer: Alexander Brown
    Location: Union Reservoir
  177. # Count: 1
    Observer: Gene Rutherford
    Location: LUNA Reservoir
  178. # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Lake
  179. # Count: 1
    Date:
    Observer: Gene Rutherford
    Location: Black Hollow Reservoir
  180. # Count: 1
    Observer: Cole Wild
  181. # Count: 1
    Observer: Sue Riffe
    Location: Union Reservoir
  182. # Count: 1
    Observer: Steven Mlodinow
    Location: Windsor Lake
  183. # Count: 1
    Observer: Cole Wild
  184. # Count: 1
    Observer: Cole Wild
    Location: Windsor Reservoir
  185. # Count: 1
    Date:
    Observer: Steven Mlodinow
  186. # Count: 1
    Observer: Adrian Lakin
    Location: Peninsula Park
  187. # Count: 1
    Observer: Sue Riffe
    Location: Union Reservoir
  188. # Count: 1
    Observer: Steven Mlodinow
    Location: Union Reservoir
  189. # Count: 1
    Date:
    Observer: Norman Erthal
    Location: Union Reservoir
  190. # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  191. # Count: 1
    Observer: Cole Wild
    Location: Windsor Reservoir
  192. # Count: 1
    Observer: Loch Kilpatrick
    Location: Union Reservoir
  193. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  194. # Count: 1
    Date:
    Observer: Steven Mlodinow
  195. # Count: 1
    Observer: George Mayfield
  196. # Count: 1
    Date:
    Observer: Patricia Cullen
  197. # Count: 1
    Date:
    Observer: Steven Mlodinow
  198. # Count: 1
    Observer: Steven Mlodinow
    Location: Baxter Lake
  199. # Count: 1
    Observer: Joe Kipper
    Location: Poudre Ponds
  200. # Count: 1
    Observer: Steven Mlodinow
  201. # Count: 1
    Date:
    Observer: Thomas Bunker
  202. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  203. # Count: 1
    Observer: Rachel Kolokoff Hopper
  204. # Count: 1
    Observer: Ric Olson
  205. # Count: 1
    Date:
    Observer: Colorado Bird Records Committee
  206. # Count: 1
    Observer: Kevin Rutherford
    Location: Union Reservoir
  207. # Count: 1
    Observer: Connor Johnson
  208. # Count: 1
    Observer: Sue Riffe
  209. # Count: 1
    Observer: Kelly Ormesher
    Location: Union Reservoir
  210. # Count: 1
    Observer: Jeff Percell
    Location: Percell Backyard, Northridge, Erie, Colorado, US (40.065, -105.042)
  211. # Count: 1
    Observer: carl starace
  212. # Count: 1
    Observer: Joe Kipper
    Location: Union Reservoir
  213. # Count: 1
    Date:
    Observer: Stuart Liss
    Location: Kodak Watchable Wildlife Area
  214. # Count: 1
    Observer: Joe Kipper
    Location: Glenmere Park
  215. # Count: 1
    Observer: Sue Riffe
  216. # Count: 1
    Observer: Joe Kipper
    Location: Union Reservoir
  217. # Count: 1
    Observer: Amanda Gorely
  218. # Count: 1
    Observer: Brian Genge
    Location: Glenmere Park
  219. # Count: 1
    Observer: Adrian Lakin
    Location: County Road 104, Briggsdale, Colorado, US (40.741, -104.387)
  220. # Count: 1
    Observer: Sue Riffe
    Location: Loloff Reservoir
  221. # Count: 1
    Observer: Kelly Ormesher
  222. # Count: 1
    Observer: Donna Stumpp
    Location: I-76 E, Keenesburg US-CO 40.16073, -104.45156
  223. # Count: 1
    Observer: Cole Wild
  224. # Count: 1
    Observer: Steven Mlodinow
    Location: Eaton Cemetery
  225. # Count: 1
    Observer: Eve Lempriere
  226. # Count: 1
    Observer: Erik Atwell
  227. # Count: 1
    Observer: Alicia Arnold 🦩
  228. # Count: 1
    Observer: Kelly Ormesher
  229. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  230. # Count: 1
    Observer: shawn mason
    Location: Poudre River Trail, Sheep Draw east of N. 71st Ave
  231. # Count: 1
    Observer: Steve Barlow
    Location: Union Reservoir
  232. # Count: 1
    Observer: Sue Riffe
    Location: Union Reservoir
  233. # Count: 1
  234. # Count: 1
    Observer: Anonymous eBirder
    Location: Stewart's Pond
  235. # Count: 1
    Observer: Anonymous eBirder
    Location: County Road 105, Grover US-CO 40.65519, -104.06796
  236. # Count: 1
    Observer: Dave Meisinger
    Location: Larch Drive
  237. # Count: 1
    Date:
    Observer: Steven Mlodinow
  238. # Count: 1
    Observer: Daniel Maynard
  239. # Count: 1
    Date:
    Observer: Winston Liu
  240. # Count: 1
    Observer: Kelly Ormesher
  241. # Count: 1
    Observer: Holly Kaltenstein
    Location: Crow Valley Recreation Area, Briggsdale US-CO 40.64401, -104.34120
  242. # Count: 1
    Date:
    Observer: Edward Raynor
  243. # Count: 1
    Observer: Kelly Ormesher
    Location: Union Reservoir
  244. # Count: 1
    Date:
    Observer: Edward Landi
  245. # Count: 1
    Date:
    Observer: Nick Komar
  246. # Count: 1
    Observer: Jeffrey Price
  247. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  248. # Count: 1
    Observer: Craig Caldwell
  249. # Count: 1
    Observer: Sandra Hardy Reigel
  250. # Count: 1
    Date:
    Observer: John Vanderpoel
  251. # Count: 1
    Observer: Winston Liu
  252. # Count: 1
    Observer: Jeff Percell
    Location: 1925 County Road 16 1/2, Longmont, Colorado, US (40.11, -105.02)
  253. # Count: 1
    Observer: Kelly Ormesher
    Location: Weld CR 42.5 Marsh
  254. # Count: 1
    Date:
    Observer: David Yeamans
  255. # Count: 1
    Observer: shawn mason
  256. # Count: 1
    Observer: Jay Hutchins
  257. # Count: 1
    Observer: Josh Bruening
  258. # Count: 1
    Observer: Brian Genge
  259. # Count: 1
    Date:
    Observer: Ryan Graves
  260. # Count: 1
    Observer: Joe Kipper
  261. # Count: 1
    Date:
    Observer: Kelly Ormesher
    Location: Union Reservoir
  262. # Count: 1
    Observer: Kelly Ormesher
  263. # Count: 1
    Observer: Vicky Miles
  264. # Count: 1
    Observer: Dave Ruane
    Location: Home area (CO)
  265. # Count: 1
    Observer: Cole Wild
    Location: Pelican Lakes
  266. # Count: 1
    Date:
    Observer: Nick Moore
    Location: Glenmere Park
  267. # Count: 1
    Observer: Adrian Lakin
    Location: Home - Mead
  268. # Count: 1
    Observer: Sue Riffe
  269. # Count: 1
    Observer: Joe Kipper
    Location: Union Reservoir
  270. # Count: 1
    Observer: Brian Genge
    Location: Stewart's Pond
  271. # Count: 1
    Date:
    Observer: Patricia Cullen
  272. # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  273. # Count: 1
    Observer: Eric DeFonso 🦑
    Location: Lawson Ave, Erie
  274. # Count: 1
    Observer: Kelly Ormesher
    Location: 50990 County Road 57, Ault US-CO 40.73987, -104.52431
  275. # Count: 1
    Observer: Jeff Percell
    Location: Percell Backyard, Northridge, Erie, Colorado, US (40.065, -105.042)
  276. # Count: 1
    Observer: Finn Harty
    Location: Union Reservoir
  277. # Count: 1
    Observer: Joe Kipper
  278. # Count: 1
    Observer: Dave Ruane
    Location: Home area (CO)
  279. # Count: 1
    Date:
    Observer: Edward Landi
  280. # Count: 1
    Date:
    Observer: Steven Mlodinow
  281. # Count: 1
    Observer: Cole Wild
  282. # Count: 1
    Observer: Prairie Birder
    Location: Front Range Land & Livestock (private-no access)
  283. # Count: 1
    Observer: Joe Kipper
    Location: Union Reservoir
  284. # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Greeley
  285. # Count: 1
    Date:
    Observer: Garrison Doctor
    Location: Hangar
  286. # Count: 1
    Observer: Joe Kipper
  287. # Count: 1
    Observer: Cole Wild
    Location: Franklin Lake
  288. # Count: 1
    Observer: Brady Schwab
  289. # Count: 1
    Observer: An Illinois Birder
    Location: "Grandma's Garden"
  290. # Count: 1
    Observer: William Vanderpoel
  291. # Count: 1
    Observer: William Vanderpoel
  292. # Count: 1
    Date:
    Observer: Ann Colpitts
  293. # Count: 1
    Observer: Gene Rutherford
    Location: US-Colorado-Raymer-65858 County Road 116 - 40.832x-103.803
  294. # Count: 1
    Observer: Anonymous eBirder
  295. # Count: 1
    Observer: Ryan Graves
    Location: Briggsdale (town)
  296. # Count: 1
    Date:
    Observer: shawn mason
    Location: Poudre Ponds
  297. # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: WCR 37 and WCR 128
  298. # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  299. # Count: 1
    Observer: Steven Mlodinow
    Location: Glenmere Park
  300. # Count: 1
    Date:
    Observer: Adrian Lakin
  301. # Count: 1
    Observer: Cole Wild
    Location: Weld CR 128
  302. # Count: 1
    Observer: Vicki Sandage
  303. # Count: 1
    Observer: Brian Genge
    Location: 66609–66875 County Road 89, Grover US-CO 40.96901, -104.22020
  304. # Count: 1
    Observer: Joe Kipper
    Location: 55359 County Road 134, Grover, Colorado, US (40.96, -103.983)
  305. # Count: 1
    Observer: Sue Riffe
    Location: Beebe Draw area
  306. # Count: 1
    Observer: James P. Smith
    Location: Pawnee National Grassland
  307. # Count: 1
    Observer: Brian Genge
    Location: County Road 120, Grover US-CO 40.85689, -104.48503
  308. # Count: 1
    Observer: Dean Shoup
  309. # Count: 1
    Observer: Kelly Ormesher
  310. # Count: 1
    Observer: Cole Wild
  311. # Count: 1
    Date:
    Observer: Bill Prather
    Location: Union Reservoir
  312. # Count: 1
    Date:
    Observer: Cole Wild
    Location: Timnath Reservoir Marsh
  313. # Count: 1
    Observer: George Bailey
  314. # Count: 1
    Observer: Joey Angstman
  315. # Count: 1
    Observer: Joe Kipper
  316. # Count: 1
    Date:
    Observer: Rachel Kolokoff Hopper
    Location: Rockwell Reservoir
  317. # Count: 1
    Observer: Karen Taylor
    Location: 117 Hays Avenue, Johnstown, Colorado, US (40.333, -104.917)
  318. # Count: 1
    Observer: Brian Genge
  319. # Count: 1
    Observer: Steven Mlodinow
  320. # Count: 1
    Observer: carl starace
  321. # Count: 1
    Observer: Andy Bankert
    Location: Meadow Spring Ranch (restricted access)
  322. # Count: 1
    Observer: Kelly Ormesher
  323. # Count: 1
    Observer: Cole Wild
  324. # Count: 1
    Date:
    Observer: Bob Spencer
    Location: St. Vrain SP
  325. # Count: 1
    Observer: Nick Varvel
  326. # Count: 1
    Date:
    Observer: Cole Wild
  327. # Count: 1
    Observer: Ginny Bergstrom
    Location: Poudre Ponds
  328. # Count: 1
    Date:
    Observer: Joe Roller
  329. # Count: 1
    Date:
    Observer: Gene Rutherford
  330. # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  331. # Count: 1
    Observer: Colorado Bird Records Committee
  332. # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  333. # Count: 1
    Observer: Kelly Ormesher
    Location: 50990 County Road 57, Ault US-CO 40.73987, -104.52431
  334. # Count: 1
    Observer: Nils Warnock
    Location: Eaton Cemetery
  335. # Count: 1
    Observer: John Vanderpoel
  336. # Count: 1
    Observer: Marie Cecile Lee
  337. # Count: 1
    Observer: Loch Kilpatrick
  338. # Count: 1
    Observer: Cole Wild
  339. # Count: 1
    Date:
    Observer: Steve Larson
  340. # Count: 1
    Observer: Mark Chavez
  341. # Count: 1
    Observer: Joe Kipper
    Location: Glenmere Park
  342. # Count: 1
    Observer: Zachary Young
  343. # Count: 1
    Observer: Brian Genge
  344. # Count: 1
    Observer: John Vanderpoel
  345. # Count: 1
    Observer: Joe Kipper
    Location: Poudre Ponds
  346. # Count: 1
    Date:
    Observer: Patrick Morgan
    Location: Union Reservoir
  347. # Count: 1
    Observer: Kelly Ormesher
  348. # Count: 1
    Observer: Juniper Vane
  349. # Count: 1
    Observer: Gene Rutherford
    Location: Eaton Cemetery
  350. # Count: 1
    Date:
    Observer: Bruce Snyder
    Location: WCR 77 north of WCR 118
  351. # Count: 1
    Observer: Art Hudak
    Location: 13810 County Road 1
  352. # Count: 1
    Observer: Joey Angstman
    Location: McCloskey Natural Area, Greeley US-CO 40.42016, -104.78585
  353. # Count: 1
    Date:
    Observer: Rachel Kolokoff Hopper
  354. # Count: 1
    Observer: Cole Wild
  355. # Count: 1
    Date:
    Observer: Cole Wild
  356. # Count: 1
    Observer: Kelly Ormesher
  357. # Count: 1
    Observer: Tyler Wilson
    Location: Glenmere Park
  358. # Count: 1
    Observer: Chris Petrizzo
  359. # Count: 1
    Date:
    Observer: Jeff Birek
  360. # Count: 1
    Date:
    Observer: Ryan Graves
    Location: Pelican Lakes
  361. # Count: 1
    Date:
    Observer: Rachel Kolokoff Hopper
    Location: Briggsdale (town)
  362. # Count: 1
    Date:
    Observer: Gene Rutherford
  363. # Count: 1
    Observer: Sue Riffe
  364. # Count: 1
    Observer: Brian Genge
  365. # Count: 1
    Observer: Anson Call
  366. # Count: 1
    Observer: David Suddjian
    Location: Weld CR 57 x CR 62 and vicinity
  367. # Count: X
    Observer: Brian Genge
    Location: Poudre Ponds

Exotic: Provisional (1)

  1. # Count: 2
    Date:
    Observer: Rob Crawford
    Location: 28023–28373 County Road 59, Kersey US-CO 40.40525, -104.50818

Exotic: Escapee (13)

  1. # Count: 9
    Date:
    Observer: Joshua Smith
    Location: Pawnee National Grassland, Briggsdale US-CO (40.6396,-104.3340)
  2. # Count: 4
    Observer: Grant Beauprez
    Location: Well's Ranch
  3. # Count: 4
    Observer: Cole Wild
    Location: Rockwell Reservoir
  4. # Count: 3
    Date:
    Observer: Susan Rosine
  5. # Count: 2
    Date:
    Observer: Frank and Nancy Hatch
    Location: Glenmere Park
  6. # Count: 2
    Observer: Joe Kipper
    Location: Swan Pond, F Street, Greeley, Colorado, US (40.443, -104.754)
  7. # Count: 1
    Date:
    Observer: Cheri & Rich Phillips
    Location: US-Colorado-Kersey-24606-24998 County Road 59 - 40.362x-104.507
  8. # Count: 1
    Observer: Douglas Rich
    Location: 7205 Poudre River Rd, Greeley US-CO (40.4427,-104.7941)
  9. # Count: 1
    Observer: Bruce Snyder
    Location: WCR 49 north of WCR 4
  10. # Count: 1
    Observer: Renee Casias
  11. # Count: 1
    Date:
    Observer: Cole Wild
  12. # Count: 1
    Observer: Anonymous eBirder
    Location: Greeley

Hybrids (49)

  1. Snow x Ross's Goose (hybrid) Anser caerulescens x rossii
    # Count: 1
    Observer: Steven Mlodinow
    Location: St. Vrain SP
  2. Snow x Greater White-fronted Goose (hybrid) Anser caerulescens x albifrons
    # Count: 1
    Observer: Chuck Aid
    Location: Stewart's Pond
  3. Snow x Cackling Goose (hybrid) Anser caerulescens x Branta hutchinsii
    # Count: 1
    Observer: Craig Robson
    Location: Franklin Lake
  4. Ross's x Cackling Goose (hybrid) Anser rossii x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  5. Greater White-fronted x Cackling Goose (hybrid) Anser albifrons x Branta hutchinsii
    # Count: 1
    Date:
    Observer: Cole Wild
    Location: Windsor Reservoir
  6. Greater White-fronted x Canada Goose (hybrid) Anser albifrons x Branta canadensis
    # Count: 1
    Observer: Steven Mlodinow
    Location: Woods Lake
  7. Graylag x Canada Goose (hybrid) Anser anser x Branta canadensis
    # Count: 1
    Observer: Steven Mlodinow
    Location: Windsor Reservoir
  8. Snow x Canada Goose (hybrid) Anser caerulescens x Branta canadensis
    # Count: 1
    Date:
    Observer: Norm Lewis
  9. Ross's x Canada Goose (hybrid) Anser rossii x Branta canadensis
    # Count: 1
    Observer: Steven Mlodinow
    Location: Baldridge Estates
  10. Snow/Ross's x Cackling/Canada Goose (hybrid) Anser caerulescens/rossii x Branta hutchinsii/canadensis
    # Count: 1
    Observer: Cole Wild
    Location: Franklin Lake
  11. Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanoptera
    # Count: 1
    Observer: Steven Mlodinow
    Location: Stewart's Pond
  12. Blue-winged Teal x Northern Shoveler (hybrid) Spatula discors x clypeata
    # Count: 1
    Observer: Cathy Sheeter
  13. Cinnamon Teal x Northern Shoveler (hybrid) Spatula cyanoptera x clypeata
    # Count: 1
    Observer: Steven Mlodinow
  14. Northern Shoveler x Gadwall (hybrid) Spatula clypeata x Mareca strepera
    # Count: 1
    Observer: Steven Mlodinow
    Location: Stewart's Pond
  15. Northern Shoveler x American Wigeon (hybrid) Spatula clypeata x Mareca americana
    # Count: 1
    Observer: Steven Mlodinow
  16. Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchos
    # Count: 1
    Observer: shawn mason
    Location: Glenmere Park
  17. Northern Shoveler x Mallard (hybrid) Spatula clypeata x Anas platyrhynchos
    # Count: 1
    Observer: Ryan Graves
    Location: 630 Vermilion Peak Drive
  18. Gadwall x Mallard (hybrid) Mareca strepera x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Steven Mlodinow
  19. American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchos
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Baxter Lake
  20. Mallard x Mexican Duck (hybrid) Anas platyrhynchos x diazi
    # Count: 1
    Observer: Steven Mlodinow
    Location: Stewart's Pond
  21. Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripes
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Stewart's Pond
  22. Mallard x Mottled Duck (hybrid) Anas platyrhynchos x fulvigula
    # Count: 1
    Observer: Steven Mlodinow
    Location: Stewart's Pond
  23. Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acuta
    # Count: 1
    Observer: Prairie Birder
    Location: Front Range Land & Livestock-Chestnut Slough (private-no access)
  24. Canvasback x Redhead (hybrid) Aythya valisineria x americana
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: LUNA Reservoir
  25. Redhead x Ring-necked Duck (hybrid) Aythya americana x collaris
    # Count: 1
    Observer: Steven Mlodinow
    Location: Stewart's Pond
  26. Ring-necked Duck x Lesser Scaup (hybrid) Aythya collaris x affinis
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: St. Vrain SP
  27. Tufted Duck x Lesser Scaup (hybrid) Aythya fuligula x affinis
    # Count: 1
    Observer: Steven Mlodinow
  28. Redhead x scaup sp. (hybrid) Aythya americana x marila/affinis
    # Count: 1
    Observer: Steven Mlodinow
  29. Bufflehead x Common Goldeneye (hybrid) Bucephala albeola x clangula
    # Count: 1
    Observer: Steven Mlodinow
    Location: Union Reservoir
  30. Common x Barrow's Goldeneye (hybrid) Bucephala clangula x islandica
    # Count: 1
    Observer: Steven Mlodinow
    Location: LUNA Reservoir
  31. Bufflehead x Hooded Merganser (hybrid) Bucephala albeola x Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: Steven Mlodinow
  32. Common Goldeneye x Hooded Merganser (hybrid) Bucephala clangula x Lophodytes cucullatus
    # Count: 1
    Date:
    Observer: Steven Mlodinow
    Location: Poudre Ponds
  33. Western x Clark's Grebe (hybrid) Aechmophorus occidentalis x clarkii
    # Count: 1
    Observer: Steven Mlodinow
    Location: Union Reservoir
  34. Eurasian Collared-Dove x Mourning Dove (hybrid) Streptopelia decaocto x Zenaida macroura
    # Count: 1
    Observer: Sean Walters
  35. Laughing x Ring-billed Gull (hybrid) Leucophaeus atricilla x Larus delawarensis
    # Count: 1
    Observer: Steven Mlodinow
    Location: Union Reservoir
  36. Herring x Glaucous Gull (hybrid) Larus argentatus x hyperboreus
    # Count: 1
    Observer: Steven Mlodinow
    Location: Union Reservoir
  37. Herring x Lesser Black-backed Gull (hybrid) Larus argentatus x fuscus
    # Count: 1
    Observer: Steven Mlodinow
    Location: Union Reservoir
  38. Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens
    # Count: 1
    Observer: Nick Komar
    Location: Windsor Lake
  39. Glossy x White-faced Ibis (hybrid) Plegadis falcinellus x chihi
    # Count: 1
    Date:
    Observer: Susan Rosine
    Location: Union Reservoir
  40. Yellow-bellied x Red-naped Sapsucker (hybrid) Sphyrapicus varius x nuchalis
    # Count: 1
    Observer: Steven Mlodinow
  41. Downy x Hairy Woodpecker (hybrid) Dryobates pubescens x villosus
    # Count: 1
    Observer: Sue Riffe
  42. Black x Eastern Phoebe (hybrid) Sayornis nigricans x phoebe
    # Count: 1
    Date:
    Observer: Adrian Lakin
  43. Barn x Cliff Swallow (hybrid) Hirundo rustica x Petrochelidon pyrrhonota
    # Count: 1
    Observer: Steven Mlodinow
  44. Spotted x Eastern Towhee (hybrid) Pipilo maculatus x erythrophthalmus
    # Count: 1
    Observer: Ric Olson
  45. Western x Eastern Meadowlark (hybrid) Sturnella neglecta x magna
    # Count: 1
    Observer: Steven Mlodinow
  46. Bullock's x Baltimore Oriole (hybrid) Icterus bullockii x galbula
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  47. Townsend's x Black-throated Green Warbler (hybrid) Setophaga townsendi x virens
    # Count: 1
    Date:
    Observer: Joey Angstman
  48. Rose-breasted x Black-headed Grosbeak (hybrid) Pheucticus ludovicianus x melanocephalus
    # Count: 1
    Observer: Steven Mlodinow
    Location: Eaton Cemetery
  49. Lazuli x Indigo Bunting (hybrid) Passerina amoena x cyanea
    # Count: 1
    Observer: alissa hubbard
    Location: Windsor

Additional Taxa (129)

  1. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 500
    Date:
    Observer: Daniel Gelbart
    Location: Union Reservoir
  2. Western/Clark's Grebe Aechmophorus occidentalis/clarkii
    # Count: 250
    Observer: John Vanderpoel
    Location: Union Reservoir
  3. gull sp. Larinae sp.
    # Count: 150
    Observer: Sue Riffe
  4. blackbird sp. Icteridae sp.
    # Count: 150
    Observer: Brian Genge
    Location: Stewart's Pond
  5. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: 75
    Observer: John Vanderpoel
    Location: Union Reservoir
  6. swallow sp. Hirundinidae sp.
    # Count: 60
    Observer: Brian Genge
  7. pigeon/dove sp. Columbidae sp.
    # Count: 40
    Date:
    Observer: Phil & Angie Beyer
  8. Blue-winged/Cinnamon Teal Spatula discors/cyanoptera
    # Count: 30
    Observer: David Suddjian
  9. duck sp. Anatidae (duck sp.)
    # Count: 30
    Observer: Brian Genge
    Location: Stewart's Pond
  10. Calidris sp. Calidris sp.
    # Count: 30
    Observer: Gigi Zarzuela
    Location: Loloff Reservoir
  11. cormorant sp. Phalacrocoracidae sp.
    # Count: 30
    Observer: Chris Goulart
  12. rosy-finch sp. Leucosticte sp.
    # Count: 15
    Observer: Matt Clark
    Location: County Road 128 (Weld County)
  13. Snow/Ross's Goose Anser caerulescens/rossii
    # Count: 10
    Observer: The Bushmaster
    Location: 80652, Roggen US-CO 40.17026, -104.29312
  14. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 10
    Observer: Sue Riffe
    Location: Loloff Reservoir
  15. Glossy/White-faced Ibis Plegadis falcinellus/chihi
    # Count: 8
    Observer: zachary Dirks
    Location: Private
  16. Red/Red-necked Phalarope Phalaropus fulicarius/lobatus
    # Count: 7
    Observer: Christine Alexander
    Location: Lehan Pond County Road 41, La Salle US-CO (40.3307,-104.6785)
  17. merganser sp. Mergellus/Lophodytes/Mergus sp.
    # Count: 6
    Observer: Noah Hunter
    Location: Union Reservoir
  18. Western/Semipalmated Sandpiper Calidris mauri/pusilla
    # Count: 6
    Date:
    Observer: Cathy Sheeter
  19. teal sp. Anatidae sp. (teal sp.)
    # Count: 4
    Observer: Brian Genge
    Location: County Road 120, Grover US-CO 40.85631, -104.27841
  20. phalarope sp. Phalaropus sp.
    # Count: 4
    Observer: Jeff Percell
    Location: Stewart's Pond
  21. longspur sp. Calcarius/Rhynchophanes sp.
    # Count: 4
    Date:
    Observer: Thomas Kurtz
  22. Spizella sp. Spizella sp.
    # Count: 4
    Observer: Doug Holder
  23. swan sp. Cygnus sp.
    # Count: 3
    Observer: Anonymous eBirder
    Location: Greeley
  24. Horned/Eared Grebe Podiceps auritus/nigricollis
    # Count: 3
    Observer: Jeff Percell
    Location: Stewart's Pond
  25. plover sp. Charadriidae sp.
    # Count: 3
    Observer: Susan Nelson
    Location: Cozzens Lake
  26. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 3
    Observer: John Vanderpoel
    Location: Union Reservoir
  27. Western/Eastern Meadowlark Sturnella neglecta/magna
    # Count: 3
    Observer: Parker Zabriskie
  28. Bullock's/Baltimore Oriole Icterus bullockii/galbula
    # Count: 3
    Observer: C. Warneke
  29. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 2
    Observer: Jay Hutchins
    Location: Union Reservoir
  30. Eurasian/American Wigeon Mareca penelope/americana
    # Count: 2
    Observer: Dave Ruane
    Location: Home area (CO)
  31. Aythya sp. Aythya sp.
    # Count: 2
    Date:
    Observer: E White
    Location: Union Reservoir
  32. Ring-necked/Green Pheasant Phasianus colchicus/versicolor
    # Count: 2
    Date:
    Observer: Ariel Kallenbach
  33. swift sp. Apodidae sp.
    # Count: 2
    Observer: Michael Patterson
  34. hummingbird sp. Trochilidae sp.
    # Count: 2
    Observer: Jeff Percell
    Location: Percell Backyard, Northridge, Erie, Colorado, US (40.065, -105.042)
  35. Herring/Iceland Gull Larus argentatus/glaucoides
    # Count: 2
    Observer: Joe Grzybowski
    Location: Windsor Lake
  36. Forster's/Common Tern Sterna forsteri/hirundo
    # Count: 2
    Observer: Joe Kipper
    Location: Union Reservoir
  37. Common/Arctic Tern Sterna hirundo/paradisaea
    # Count: 2
    Observer: Oscar Johnson
  38. tern sp. Sterninae sp.
    # Count: 2
    Date:
    Observer: Vicky Bonifacio
    Location: Windsor Lake
  39. Toxostoma sp. Toxostoma sp.
    # Count: 2
    Date:
    Observer: Walter Wehtje
  40. grackle sp. Quiscalus sp.
    # Count: 2
    Observer: Jeff Percell
    Location: Northridge Loop
  41. Cackling/Canada Goose Branta hutchinsii/canadensis
    # Count: 1
    Observer: Trudy Kyler
    Location: Glenmere Park
  42. Trumpeter/Tundra Swan Cygnus buccinator/columbianus
    # Count: 1
    Observer: Steve Barlow
    Location: Gravel pit on Aggregate Rd
  43. goose sp. Anatidae (goose sp.)
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  44. Mallard/Mexican Duck Anas platyrhynchos/diazi
    # Count: 1
    Observer: Cole Wild
  45. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 1
    Observer: Chris Goulart
    Location: Peninsula Park
  46. Common/Barrow's Goldeneye Bucephala clangula/islandica
    # Count: 1
    Observer: Thomas Heinrich
    Location: Union Reservoir
  47. grebe sp. Podicipedidae sp.
    # Count: 1
    Date:
    Observer: Noah Sanford
    Location: Poudre Ponds
  48. nighthawk sp. Chordeiles sp.
    # Count: 1
    Date:
    Observer: Jay Hutchins
    Location: Union Reservoir
  49. nightjar sp. Caprimulgidae sp.
    # Count: 1
    Observer: Brian Genge
    Location: 41212–41812 County Road 105, Briggsdale US-CO 40.60211, -104.06911
  50. Selasphorus sp. Selasphorus sp.
    # Count: 1
    Observer: Tyler Wilson
  51. rail/crake sp. Rallidae sp. (rail/crake sp.)
    # Count: 1
    Observer: Cedar Stanistreet
    Location: Pawnee National Grassland, Grover US-CO 40.96016, -103.97268
  52. American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulva
    # Count: 1
    Date:
    Observer: Steven Mlodinow
  53. Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceus
    # Count: 1
    Observer: Susan Rosine
    Location: Stewart's Pond
  54. Tringa sp. Tringa sp.
    # Count: 1
    Date:
    Observer: Steve Hebert
    Location: Stewart's Pond
  55. peep sp. Calidris sp. (peep sp.)
    # Count: 1
    Date:
    Observer: Michael Britten
    Location: Union Reservoir
  56. large shorebird sp. Scolopacidae sp. (large shorebird sp.)
    # Count: 1
    Observer: George Kinney
  57. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Joe Kipper
    Location: Poudre Ponds
  58. jaeger sp. Stercorarius sp. (jaeger sp.)
    # Count: 1
    Observer: Colorado Bird Records Committee
    Location: Union Reservoir
  59. Herring/Glaucous-winged Gull Larus argentatus/glaucescens
    # Count: 1
    Observer: David Wade
  60. Larus sp. Larus sp.
    # Count: 1
    Observer: Jeff Percell
    Location: St. Vrain SP
  61. Sterna sp. Sterna sp.
    # Count: 1
    Observer: Joe Roller
    Location: Loloff Reservoir
  62. Arctic/Pacific Loon Gavia arctica/pacifica
    # Count: 1
    Observer: Mike Blatchley
    Location: Union Reservoir
  63. loon sp. Gavia sp.
    # Count: 1
    Observer: John W
    Location: Union Reservoir Nature Area, Longmont US-CO 40.17331, -105.04484
  64. Double-crested/Neotropic Cormorant Nannopterum auritum/brasilianum
    # Count: 1
    Observer: Alan Nelson
    Location: Stewart's Pond
  65. Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violacea
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  66. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Observer: Jim Stoneberg
    Location: Poudre River Trail, Windsor US-CO 40.44940, -104.88819
  67. Accipiter sp. Accipiter sp.
    # Count: 1
    Observer: Winston Liu
    Location: Erie US-CO
  68. Golden/Bald Eagle Aquila chrysaetos/Haliaeetus leucocephalus
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  69. Buteo sp. Buteo sp.
    # Count: 1
    Observer: Brian Genge
  70. Buteo/eagle sp. Buteo/eagle sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  71. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Karen Smith
    Location: North of Platteville
  72. eagle sp. Accipitridae sp. (eagle sp.)
    # Count: 1
    Observer: Chris Petrizzo
    Location: 1660 County Road 5, Erie, Colorado, US (40.022, -105.019)
  73. Long-eared/Short-eared Owl Asio otus/flammeus
    # Count: 1
    Observer: Bill Prather
  74. owl sp. Strigiformes sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  75. Yellow-bellied/Red-naped Sapsucker Sphyrapicus varius/nuchalis
    # Count: 1
    Date:
    Observer: Bruce Raup
    Location: 1242 49th Avenue, Greeley, Colorado, US (40.416, -104.761)
  76. sapsucker sp. Sphyrapicus sp.
    # Count: 1
    Observer: Stephen Bylin
  77. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  78. woodpecker sp. Picidae sp.
    # Count: 1
    Observer: jenny shelton
  79. large falcon sp. Falco sp. (large falcon sp.)
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  80. small falcon sp. Falco sp. (small falcon sp.)
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  81. falcon sp. Falco sp.
    # Count: 1
    Observer: Alex Smolyanskaya
    Location: Erie Community Park
  82. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Observer: Jennie Duberstein
    Location: County Road 79, Briggsdale US-CO 40.63682, -104.31606
  83. Western/Eastern Wood-Pewee Contopus sordidulus/virens
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  84. pewee sp. (Contopus sp.) Contopus sp.
    # Count: 1
    Date:
    Observer: Winston Liu
    Location: Eaton Cemetery
  85. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  86. Hammond's/Dusky Flycatcher Empidonax hammondii/oberholseri
    # Count: 1
    Observer: Helen Butts
  87. Gray/Dusky Flycatcher Empidonax wrightii/oberholseri
    # Count: 1
    Date:
    Observer: Patricia Cohn
  88. Empidonax sp. Empidonax sp.
    # Count: 1
    Observer: Brian Genge
    Location: Poudre Ponds
  89. Myiarchus sp. Myiarchus sp.
    # Count: 1
    Observer: Steven Mlodinow
  90. Cassin's/Western Kingbird Tyrannus vociferans/verticalis
    # Count: 1
    Date:
    Observer: Dave Prentice
  91. yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)
    # Count: 1
    Observer: Jason Gregg
    Location: 40.8082x-103.9893 - May 25, 2017, 09:59
  92. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Observer: Sarah Spotten
  93. Cassin's/Blue-headed Vireo Vireo cassinii/solitarius
    # Count: 1
    Date:
    Observer: David Leatherman
  94. Cassin's/Plumbeous Vireo Vireo cassinii/plumbeus
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  95. solitary vireo sp. Vireo cassinii/solitarius/plumbeus
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  96. vireo sp. Vireo sp.
    # Count: 1
    Observer: Scott Dieni
  97. Loggerhead/Northern Shrike Lanius ludovicianus/borealis
    # Count: 1
    Observer: Carolyn Sanders
  98. shrike sp. Lanius sp.
    # Count: 1
    Observer: Steven Mlodinow
  99. raven sp. Corvus sp. (raven sp.)
    # Count: 1
    Date:
    Observer: RJ Baltierra
    Location: 3203 County Road 28, Longmont, Colorado, US (40.198, -104.98)
  100. crow/raven sp. Corvus sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  101. Black-capped/Mountain Chickadee Poecile atricapillus/gambeli
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  102. Sedge/Marsh Wren Cistothorus stellaris/palustris
    # Count: 1
    Observer: Steve Riley
    Location: Eastman Park
  103. wren sp. Troglodytidae sp.
    # Count: 1
    Observer: Susan Ringoen
  104. bluebird sp. Sialia sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  105. Catharus sp. Catharus sp.
    # Count: 1
    Observer: Brady Schwab
  106. thrush sp. Turdidae sp.
    # Count: 1
    Observer: Finn Ward
  107. pipit sp. Anthus sp.
    # Count: 1
    Observer: David Leatherman
  108. Haemorhous sp. Haemorhous sp.
    # Count: 1
    Observer: Brian Genge
  109. new world goldfinch sp. Spinus sp. (goldfinch sp.)
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Northridge Loop
  110. finch sp. Fringillidae sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  111. Spizella sp./American Tree Sparrow Spizella/Spizelloides sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  112. Zonotrichia sp. Zonotrichia sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  113. Grasshopper/Baird's Sparrow Ammodramus savannarum/Centronyx bairdii
    # Count: 1
    Observer: Kieran Schnitzspahn
  114. Lincoln's/Swamp Sparrow Melospiza lincolnii/georgiana
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  115. Spotted/Eastern Towhee (Rufous-sided Towhee) Pipilo maculatus/erythrophthalmus
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  116. towhee sp. Melozone/Pipilo sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  117. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Observer: Jeff Percell
  118. Western/Chihuahuan Meadowlark Sturnella neglecta/lilianae
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  119. Eastern/Chihuahuan Meadowlark Sturnella magna/lilianae
    # Count: 1
    Observer: Doug Kibbe
  120. Sturnella meadowlark sp. Sturnella sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  121. new world oriole sp. Icterus sp.
    # Count: 1
    Observer: Brian Genge
  122. Rusty/Brewer's Blackbird Euphagus carolinus/cyanocephalus
    # Count: 1
    Observer: John Vanderpoel
    Location: Union Reservoir
  123. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Jeff Percell
    Location: Northridge Loop
  124. tanager sp. (Piranga sp.) Piranga sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  125. Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalus
    # Count: 1
    Observer: Otys Train
  126. Lazuli/Indigo Bunting Passerina amoena/cyanea
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  127. Passerina sp. Passerina sp.
    # Count: 1
    Observer: Jeffrey Girven
    Location: 4133 Limestone Ave, Mead US-CO 40.18653, -104.97394
  128. passerine sp. Passeriformes sp.
    # Count: 1
    Observer: Jeff Percell
  129. bird sp. Aves sp.
    # Count: X
    Observer: Luke Pheneger
    Location: Union Reservoir