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Bird List

Updated ~2 days ago
344 All Years 226 This Year 2024 195 This Month May 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (195)

  1. Canada Goose Branta canadensis
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  2. Tundra Swan Cygnus columbianus
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  3. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  4. Blue-winged Teal Spatula discors
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  5. American Wigeon Mareca americana
    # Count: 2
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  6. Mallard Anas platyrhynchos
    # Count: 4
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  7. Ring-necked Duck Aythya collaris
    # Count: 1
    Date:
    Observer: Michelle Herrmann
    Location: Fallsgrove Stream Valley Park
  8. Greater Scaup Aythya marila
    # Count: 1
    Date:
    Observer: Clive Harris
    Location: Homestead Farm (restricted access - bird from roadside)
  9. Lesser Scaup Aythya affinis
    # Count: 2
    Date:
    Observer: Don Simonson
    Location: C&O Canal--Riley's Lock
  10. Bufflehead Bucephala albeola
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Homestead Farm (restricted access - bird from roadside)
  11. Hooded Merganser Lophodytes cucullatus
    # Count: 4
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  12. Common Merganser Mergus merganser
    # Count: 2
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  13. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  14. Ruddy Duck Oxyura jamaicensis
    # Count: 1
    Date:
    Observer: Gary Chirlin
    Location: Lake Hallowell
  15. Wild Turkey Meleagris gallopavo
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  16. Pied-billed Grebe Podilymbus podiceps
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  17. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  18. Rock Pigeon Columba livia
    # Count: 15
    Date:
    Observer: David Blockstein
    Location: Blockstein-Prybyla residence
  19. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Izaak Walton Way (bird from road only)
  20. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  21. Black-billed Cuckoo Coccyzus erythropthalmus
    # Count: 1
    Date:
    Observer: Jeff Smith
    Location: Hughes Hollow - McKee Beshers WMA
  22. Common Nighthawk Chordeiles minor
    # Count: 3
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  23. Chimney Swift Chaetura pelagica
    # Count: 5
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  24. Ruby-throated Hummingbird Archilochus colubris
    # Count: 1
    Date:
    Observer: Brian Killackey
    Location: Wheaton Regional Park
  25. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  26. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Hughes Hollow - McKee Beshers WMA
  27. Common Gallinule Gallinula galeata
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  28. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: Jim Ivett
    Location: Hughes Hollow - McKee Beshers WMA
  29. Sandhill Crane Antigone canadensis
    # Count: 1
    Date:
    Observer: Robin Skinner
    Location: Mom's house (private property)
  30. Black-bellied Plover Pluvialis squatarola
    # Count: 1
    Date:
    Observer: Clive Harris
    Location: Homestead Farm (restricted access - bird from roadside)
  31. Killdeer Charadrius vociferus
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  32. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: Allen Burke
    Location: Lake Needwood
  33. Short-billed Dowitcher Limnodromus griseus
    # Count: 6
    Date:
    Observer: Mary Ann Todd
    Location: C&O Canal--Violette's Lock
  34. American Woodcock Scolopax minor
    # Count: 2
    Date:
    Observer: Mary Ann Todd
    Location: Izaak Walton Way (bird from road only)
  35. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  36. Spotted Sandpiper Actitis macularius
    # Count: 2
    Date:
    Observer: Leo Prikhodko
    Location: Kentlands Lakes (Darnestown Rd. ponds)
  37. Solitary Sandpiper Tringa solitaria
    # Count: 10
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  38. Lesser Yellowlegs Tringa flavipes
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  39. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Eva R
    Location: Lake Needwood
  40. Dunlin Calidris alpina
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  41. Least Sandpiper Calidris minutilla
    # Count: 1
    Date:
    Observer: Dave Powell
    Location: Lake Needwood - north end
  42. Semipalmated Sandpiper Calidris pusilla
    # Count: 1
    Date:
    Observer: Eva R
    Location: Lake Needwood
  43. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  44. Ring-billed Gull Larus delawarensis
    # Count: 1
    Date:
    Observer: Don Simonson
    Location: C&O Canal--Riley's Lock
  45. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: Emily Huang
    Location: C&O Canal--Violette's Lock
  46. Caspian Tern Hydroprogne caspia
    # Count: 2
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  47. Black Tern Chlidonias niger
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  48. Forster's Tern Sterna forsteri
    # Count: 6
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  49. Common Tern Sterna hirundo
    # Count: 2
    Date:
    Observer: Ryan and Kathryn Carr
    Location: C&O Canal--Pennyfield Lock
  50. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  51. Double-crested Cormorant Nannopterum auritum
    # Count: 8
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  52. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Ryan and Kathryn Carr
    Location: Hughes Hollow - McKee Beshers WMA
  53. Least Bittern Ixobrychus exilis
    # Count: 1
    Date:
    Observer: Jeff Smith
    Location: Hughes Hollow - McKee Beshers WMA
  54. Yellow-crowned Night Heron Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  55. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Mariam Aboutaj
    Location: Clear Spring Park
  56. Little Blue Heron Egretta caerulea
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  57. Green Heron Butorides virescens
    # Count: 3
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  58. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  59. Great Blue Heron Ardea herodias
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  60. Glossy Ibis Plegadis falcinellus
    # Count: 4
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  61. Black Vulture Coragyps atratus
    # Count: 4
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  62. Turkey Vulture Cathartes aura
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  63. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: Leo Prikhodko
    Location: Kentlands Lakes (Darnestown Rd. ponds)
  64. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Max Wilson
    Location: Falconhurst
  65. Mississippi Kite Ictinia mississippiensis
    # Count: 1
    Date:
    Observer: Howard Youth
    Location: C&O Canal--Violette's Lock
  66. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Brennan Kizer Ball
    Location: Capital Beltway E, Bethesda US-MD 39.00685, -77.08561
  67. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Leo Prikhodko
    Location: Kentlands Lakes (Darnestown Rd. ponds)
  68. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Tim Boucher
    Location: Halbert Hook Road
  69. Bald Eagle Haliaeetus leucocephalus
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  70. Red-shouldered Hawk Buteo lineatus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  71. Broad-winged Hawk Buteo platypterus
    # Count: X
    Date:
    Observer: Claire Wolfe
    Location: Little Bennett Regional Park
  72. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  73. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Brian Pinci
    Location: Home
  74. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Izaak Walton Way (bird from road only)
  75. Barred Owl Strix varia
    # Count: 1
    Date:
    Observer: Mary Ann Todd
    Location: Izaak Walton Way (bird from road only)
  76. Belted Kingfisher Megaceryle alcyon
    # Count: 4
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  77. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  78. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 6
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  79. Downy Woodpecker Dryobates pubescens
    # Count: 3
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  80. Hairy Woodpecker Dryobates villosus
    # Count: 1
    Date:
    Observer: Leo Prikhodko
    Location: Kentlands Lakes (Darnestown Rd. ponds)
  81. Pileated Woodpecker Dryocopus pileatus
    # Count: 3
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  82. Northern Flicker Colaptes auratus
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  83. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Hughes Rd. polo fields
  84. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Kelly Shima
    Location: Wheaton Regional Park--Shorefield/mini-train tracks/Pine Lake
  85. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Carla Morris
    Location: C&O Canal--Mouth of the Monocacy (Mont. Co.)
  86. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Michael Onel
    Location: Watts Branch Stream Valley Park
  87. Eastern Wood-Pewee Contopus virens
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  88. Acadian Flycatcher Empidonax virescens
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  89. Alder Flycatcher Empidonax alnorum
    # Count: 1
    Date:
    Observer: Stacy Rabinovitz
    Location: Blue Mash Nature Trail
  90. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Royce Hanson Conservation Park, MoCo Parks
  91. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Conservation Lane
  92. Eastern Phoebe Sayornis phoebe
    # Count: 4
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  93. Great Crested Flycatcher Myiarchus crinitus
    # Count: 3
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  94. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  95. White-eyed Vireo Vireo griseus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  96. Yellow-throated Vireo Vireo flavifrons
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  97. Blue-headed Vireo Vireo solitarius
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Blockhouse Point Conservation Park
  98. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  99. Red-eyed Vireo Vireo olivaceus
    # Count: 6
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  100. Blue Jay Cyanocitta cristata
    # Count: 8
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  101. American Crow Corvus brachyrhynchos
    # Count: 2
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  102. Fish Crow Corvus ossifragus
    # Count: 4
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  103. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: Angela Atwood-Moore
    Location: Wheaton Regional Park--Shorefield/mini-train tracks/Pine Lake
  104. Carolina Chickadee Poecile carolinensis
    # Count: 5
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  105. Tufted Titmouse Baeolophus bicolor
    # Count: 10
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  106. Horned Lark Eremophila alpestris
    # Count: 2
    Date:
    Observer: John Sojda
    Location: Homestead Farm (restricted access - bird from roadside)
  107. Bank Swallow Riparia riparia
    # Count: 1
    Date:
    Observer: sharon buchanan
    Location: Blue Mash Nature Trail
  108. Tree Swallow Tachycineta bicolor
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  109. Purple Martin Progne subis
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Izaak Walton Way (bird from road only)
  110. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 3
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  111. Barn Swallow Hirundo rustica
    # Count: 4
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  112. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 1
    Date:
    Observer: Clive Harris
    Location: C&O Canal--White's Ferry
  113. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: Lisa Wilcox Deyo
    Location: C&O Canal--Violette's Lock
  114. White-breasted Nuthatch Sitta carolinensis
    # Count: 2
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  115. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: sharon buchanan
    Location: Backyard, Potomac US-MD 39.04432, -77.26707
  116. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 7
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  117. House Wren Troglodytes aedon
    # Count: 8
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  118. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Jim Ivett
    Location: Hughes Hollow - McKee Beshers WMA
  119. Carolina Wren Thryothorus ludovicianus
    # Count: 8
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  120. European Starling Sturnus vulgaris
    # Count: 4
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  121. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Sudbury Rd yard
  122. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  123. Northern Mockingbird Mimus polyglottos
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  124. Eastern Bluebird Sialia sialis
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Izaak Walton Way (bird from road only)
  125. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Roy Howard
    Location: Muddy Branch, North Potomac US-MD 39.09097, -77.25580
  126. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: Thomas Wetmore
    Location: Timberlake trailhead on north end of street
  127. Swainson's Thrush Catharus ustulatus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  128. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: C. Johnson
    Location: Rachel Carson Conservation Park
  129. Wood Thrush Hylocichla mustelina
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Izaak Walton Way (bird from road only)
  130. American Robin Turdus migratorius
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Sudbury Rd yard
  131. Cedar Waxwing Bombycilla cedrorum
    # Count: 2
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  132. House Sparrow Passer domesticus
    # Count: 2
    Date:
    Observer: Leo Prikhodko
    Location: Kentlands Lakes (Darnestown Rd. ponds)
  133. American Pipit Anthus rubescens
    # Count: 1
    Date:
    Observer: Eva R
    Location: Lake Needwood
  134. House Finch Haemorhous mexicanus
    # Count: 3
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  135. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Carla Morris
    Location: Hughes Hollow - McKee Beshers WMA
  136. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Ryan and Kathryn Carr
    Location: Bird tree
  137. American Goldfinch Spinus tristis
    # Count: 6
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  138. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Homestead Farm (restricted access - bird from roadside)
  139. Chipping Sparrow Spizella passerina
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Izaak Walton Way (bird from road only)
  140. Field Sparrow Spizella pusilla
    # Count: 1
    Date:
    Observer: Mary Ann Todd
    Location: Izaak Walton Way (bird from road only)
  141. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 4
    Date:
    Observer: Roxy Wolfe
    Location: NIH Pond
  142. White-throated Sparrow Zonotrichia albicollis
    # Count: 5
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  143. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Robin Skinner
    Location: Home
  144. Savannah Sparrow Passerculus sandwichensis
    # Count: 1
    Date:
    Observer: Roy Howard
    Location: Homestead Farm (restricted access - bird from roadside)
  145. Song Sparrow Melospiza melodia
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Izaak Walton Way (bird from road only)
  146. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Black Hill RP--Boat Ramp area
  147. Swamp Sparrow Melospiza georgiana
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  148. Eastern Towhee Pipilo erythrophthalmus
    # Count: 9
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  149. Yellow-breasted Chat Icteria virens
    # Count: 4
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  150. Bobolink Dolichonyx oryzivorus
    # Count: 1
    Date:
    Observer: David Roberts
    Location: Homestead Farm (restricted access - bird from roadside)
  151. Eastern Meadowlark Sturnella magna
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Homestead Farm (restricted access - bird from roadside)
  152. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  153. Baltimore Oriole Icterus galbula
    # Count: 4
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  154. Red-winged Blackbird Agelaius phoeniceus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  155. Brown-headed Cowbird Molothrus ater
    # Count: 5
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  156. Rusty Blackbird Euphagus carolinus
    # Count: 2
    Date:
    Observer: John McDonough
    Location: C&O Canal--Riley's Lock
  157. Common Grackle Quiscalus quiscula
    # Count: 9
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  158. Ovenbird Seiurus aurocapilla
    # Count: 7
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  159. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Scott Evans
    Location: 525 Bradford Dr, Rockville US-MD 39.09536, -77.16323
  160. Louisiana Waterthrush Parkesia motacilla
    # Count: 4
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  161. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Lisa Wilcox Deyo
    Location: C&O Canal--Violette's Lock
  162. Blue-winged Warbler Vermivora cyanoptera
    # Count: 1
    Date:
    Observer: Michael O'Brien
    Location: Upper Watts Branch - 12 Duke Street South
  163. Black-and-white Warbler Mniotilta varia
    # Count: 1
    Date:
    Observer: Roy Howard
    Location: Muddy Branch, North Potomac US-MD 39.09097, -77.25580
  164. Prothonotary Warbler Protonotaria citrea
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  165. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Hughes Hollow - McKee Beshers WMA
  166. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Roy Howard
    Location: Muddy Branch, North Potomac US-MD 39.09097, -77.25580
  167. Mourning Warbler Geothlypis philadelphia
    # Count: 1
    Date:
    Observer: hartmut doebel
    Location: Blue Mash Nature Trail
  168. Kentucky Warbler Geothlypis formosa
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  169. Common Yellowthroat Geothlypis trichas
    # Count: 6
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  170. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Angela Atwood-Moore
    Location: Wheaton Regional Park--Shorefield/mini-train tracks/Pine Lake
  171. American Redstart Setophaga ruticilla
    # Count: 2
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  172. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Scott Baron
    Location: Damascus Recreational Park
  173. Cerulean Warbler Setophaga cerulea
    # Count: 1
    Date:
    Observer: Cathy Baxter
    Location: C&O Canal--Pennyfield Lock
  174. Northern Parula Setophaga americana
    # Count: 5
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  175. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  176. Bay-breasted Warbler Setophaga castanea
    # Count: 1
    Date:
    Observer: Laura W
    Location: Overhill Rd + York Ln (Private)
  177. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Laura W
    Location: Overhill Rd + York Ln (Private)
  178. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Katherine Williams
    Location: Kentlands Lakes (Darnestown Rd. ponds)
  179. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: X
    Date:
    Observer: David Hunter
    Location: 7509 Hancock Avenue
  180. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: David Roberts
    Location: Persimmon Tree Road
  181. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 2
    Date:
    Observer: Toni Evans
    Location: Blue Mash Nature Trail
  182. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: Brett Gleitsmann
    Location: Wheaton Regional Park--Shorefield/mini-train tracks/Pine Lake
  183. Pine Warbler Setophaga pinus
    # Count: 1
    Date:
    Observer: Jim Ivett
    Location: Hughes Hollow - McKee Beshers WMA
  184. Yellow-rumped Warbler Setophaga coronata
    # Count: 3
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  185. Yellow-throated Warbler Setophaga dominica
    # Count: 1
    Date:
    Observer: Leo Prikhodko
    Location: Kentlands Lakes (Darnestown Rd. ponds)
  186. Prairie Warbler Setophaga discolor
    # Count: 2
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  187. Black-throated Green Warbler Setophaga virens
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  188. Canada Warbler Cardellina canadensis
    # Count: 1
    Date:
    Observer: Seth Factor
    Location: Little Falls Branch Stream Valley Park
  189. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: Robin Skinner
    Location: Little Bennett Regional Park
  190. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Alexandra Feeney
    Location: Billy Goat Trail Section A, Bethesda US-MD (38.9855,-77.2446)
  191. Scarlet Tanager Piranga olivacea
    # Count: 4
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  192. Northern Cardinal Cardinalis cardinalis
    # Count: 1
    Date:
    Observer: Mary Ann Todd
    Location: Izaak Walton Way (bird from road only)
  193. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park
  194. Blue Grosbeak Passerina caerulea
    # Count: 3
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  195. Indigo Bunting Passerina cyanea
    # Count: 3
    Date:
    Observer: Clifton Barry
    Location: Little Bennett Regional Park

Exotic: Escapee (1)

  1. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Hughes Hollow - McKee Beshers WMA

Hybrids (1)

  1. Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripes
    # Count: 1
    Date:
    Observer: Clive Harris
    Location: Carderock Rec

Additional Taxa (36)

  1. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  2. swan sp. Cygnus sp.
    # Count: 1
    Date:
    Observer: Robert Pinkard
    Location: C&O Canal--Violette's Lock
  3. goose sp. Anatidae (goose sp.)
    # Count: 2
    Date:
    Observer: Elda Banks
    Location: Meadowood Drive, Colesville, MD
  4. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  5. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 7
    Date:
    Observer: Cindy Hall
    Location: C&O Canal--Violette's Lock
  6. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: L. David Baron
    Location: Glen Hills neighborhood
  7. peep sp. Calidris sp. (peep sp.)
    # Count: 3
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  8. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Igor Taimassov
    Location: Hughes Hollow - McKee Beshers WMA
  9. gull sp. Larinae sp.
    # Count: 2
    Date:
    Observer: Dave Powell
    Location: C&O Canal--Riley's Lock
  10. Forster's/Common Tern Sterna forsteri/hirundo
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  11. tern sp. Sterninae sp.
    # Count: 7
    Date:
    Observer: Igor Taimassov
    Location: C&O Canal--Violette's Lock
  12. Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Kirk Owens
    Location: Bohrer Park
  13. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 1
    Date:
    Observer: Patricia L
    Location: C&O Canal--Violette's Lock
  14. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Cathy Baxter
    Location: 9720 Holmhurst Rd, Bethesda US-MD 39.01621, -77.13153
  15. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Suzanne Richman
    Location: Little Falls Branch Stream Valley Park
  16. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: L. David Baron
    Location: Glen Hills neighborhood
  17. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Oaks Landfill (private)
  18. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Adeline Louie
    Location: Wheaton Regional Park, dog park entrance to lake and orchard
  19. woodpecker sp. Picidae sp.
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Moyer Rd. Local Park
  20. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Date:
    Observer: Frank Wang
    Location: C&O Canal--Violette's Lock
  21. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Matt Peppe
    Location: Lake Frank
  22. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Rob Hilton
    Location: Lois Y. Green Conservation Park
  23. vireo sp. Vireo sp.
    # Count: 2
    Date:
    Observer: Thomas Lopez
    Location: mi casa
  24. American/Fish Crow Corvus brachyrhynchos/ossifragus
    # Count: 3
    Date:
    Observer: Adeline Louie
    Location: Ken-Gar Palisades Park
  25. swallow sp. Hirundinidae sp.
    # Count: 1
    Date:
    Observer: Gail Mackiernan
    Location: NW Branch Park -Sherwood Forest area
  26. Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapa
    # Count: 1
    Date:
    Observer: Suzanne Richman
    Location: Little Falls Branch Stream Valley Park
  27. wren sp. Troglodytidae sp.
    # Count: 1
    Date:
    Observer: William Heinle
    Location: Wheaton Regional Park--Shorefield/mini-train tracks/Pine Lake
  28. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Kevin Achtmeyer
    Location: Woodley Park - Watts Branch Forest Preserve
  29. thrush sp. Turdidae sp.
    # Count: 1
    Date:
    Observer: Ryan and Kathryn Carr
    Location: Rachel Carson Conservation Park
  30. new world sparrow sp. Passerellidae sp.
    # Count: 1
    Date:
    Observer: Kevin Achtmeyer
    Location: Neighborhood Area
  31. blackbird sp. Icteridae sp.
    # Count: 1
    Date:
    Observer: diane Ford
    Location: Rock Creek Park/Dewey Rd
  32. Chipping Sparrow/Worm-eating Warbler Spizella passerina/Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Moyer Rd. Local Park
  33. Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensis
    # Count: X
    Date:
    Observer: Rob Hilton
    Location: Wheaton Regional Park--Shorefield/mini-train tracks/Pine Lake
  34. Setophaga sp. Setophaga sp.
    # Count: 4
    Date:
    Observer: Kevin Achtmeyer
    Location: Neighborhood Area
  35. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: Scott Baron
    Location: Damascus Recreational Park
  36. passerine sp. Passeriformes sp.
    # Count: 1
    Date:
    Observer: Timothy Bates
    Location: Hughes Hollow - McKee Beshers WMA