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Bird List

Updated ~20 hours ago
344 All Years 229 This Year 2024 130 This Month Jun 2024
Last Observed First Observed High Count

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  1. Species Name
    Count
    Date
    Observer
    Location

Native and Naturalized (229)

  1. Canada Goose Branta canadensis
    # Count: 1200
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  2. Red-winged Blackbird Agelaius phoeniceus
    # Count: 115
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  3. Ring-billed Gull Larus delawarensis
    # Count: 100
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  4. Fish Crow Corvus ossifragus
    # Count: 50
    Date:
    Observer: Dave Czaplak
    Location: Blue Mash Nature Trail
  5. American Robin Turdus migratorius
    # Count: 45
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  6. Hooded Merganser Lophodytes cucullatus
    # Count: 37
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  7. White-crowned Sparrow Zonotrichia leucophrys
    # Count: 23
    Date:
    Observer: John Sojda
    Location: Homestead Farm (restricted access - bird from roadside)
  8. Cedar Waxwing Bombycilla cedrorum
    # Count: 20
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  9. Brown-headed Cowbird Molothrus ater
    # Count: 18
    Date:
    Observer: John Sojda
    Location: C&O Canal--Sycamore Landing
  10. American Crow Corvus brachyrhynchos
    # Count: 15
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  11. Chipping Sparrow Spizella passerina
    # Count: 13
    Date:
    Observer: Moira Davenport
    Location: Sugarland Rd
  12. Double-crested Cormorant Nannopterum auritum
    # Count: 11
    Date:
    Observer: Janette Rosenbaum
    Location: C&O Canal--Great Falls
  13. Eastern Towhee Pipilo erythrophthalmus
    # Count: 9
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  14. Gadwall Mareca strepera
    # Count: 8
    Date:
    Observer: Woody & Rae Dubois
    Location: 21701 Ten Mile Creek Rd, Boyds US-MD 39.21190, -77.31017
  15. Ruddy Duck Oxyura jamaicensis
    # Count: 8
    Date:
    Observer: Anne Mytych
    Location: Gunners Lake
  16. Bufflehead Bucephala albeola
    # Count: 7
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  17. American Woodcock Scolopax minor
    # Count: 7
    Date:
    Observer: John Sojda
    Location: 16925-16941 West Willard Road, Poolesville, Maryland, US (39.103, -77.418)
  18. Common Merganser Mergus merganser
    # Count: 6
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  19. Short-billed Dowitcher Limnodromus griseus
    # Count: 6
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  20. European Starling Sturnus vulgaris
    # Count: 6
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  21. American Pipit Anthus rubescens
    # Count: 6
    Date:
    Observer: John Sojda
    Location: Patton Farms (formerly Patton Turf Farm)
  22. Blue-winged Teal Spatula discors
    # Count: 5
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  23. Northern Flicker Colaptes auratus
    # Count: 5
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  24. Dark-eyed Junco Junco hyemalis
    # Count: 5
    Date:
    Observer: Ryan Douglas
    Location: Damascus
  25. White-throated Sparrow Zonotrichia albicollis
    # Count: 5
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  26. Song Sparrow Melospiza melodia
    # Count: 5
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  27. Common Grackle Quiscalus quiscula
    # Count: 5
    Date:
    Observer: Howard Youth
    Location: "East Parkhill"
  28. White-winged Scoter Melanitta deglandi
    # Count: 4
    Date:
    Observer: Scott Young
    Location: Black Hill RP--Little Seneca Lake, Rte.121
  29. Sandhill Crane Antigone canadensis
    # Count: 4
    Date:
    Observer: Brooke Levey
    Location: 14671 Sugarland Rd, Poolesville US-MD 39.09951, -77.40038
  30. Pectoral Sandpiper Calidris melanotos
    # Count: 4
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Sycamore Landing
  31. Glossy Ibis Plegadis falcinellus
    # Count: 4
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  32. Blue Jay Cyanocitta cristata
    # Count: 4
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  33. Tree Swallow Tachycineta bicolor
    # Count: 4
    Date:
    Observer: Concetta Goodrich
    Location: Hughes Hollow - McKee Beshers WMA
  34. White-breasted Nuthatch Sitta carolinensis
    # Count: 4
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  35. Eastern Meadowlark Sturnella magna
    # Count: 4
    Date:
    Observer: Jared Fisher
    Location: Homestead Farm (restricted access - bird from roadside)
  36. Yellow-throated Warbler Setophaga dominica
    # Count: 4
    Date:
    Observer: Emily Huang
    Location: C&O Canal--Lock 7
  37. American Wigeon Mareca americana
    # Count: 3
    Date:
    Observer: Susan Hunt
    Location: C&O Canal--Riley's Lock
  38. Common Nighthawk Chordeiles minor
    # Count: 3
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  39. Least Sandpiper Calidris minutilla
    # Count: 3
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  40. Great Blue Heron Ardea herodias
    # Count: 3
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  41. Turkey Vulture Cathartes aura
    # Count: 3
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  42. Broad-winged Hawk Buteo platypterus
    # Count: 3
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  43. Winter Wren Troglodytes hiemalis
    # Count: 3
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  44. Northern Mockingbird Mimus polyglottos
    # Count: 3
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  45. Swainson's Thrush Catharus ustulatus
    # Count: 3
    Date:
    Observer: Jared Fisher
    Location: Straw Bale Lane
  46. House Sparrow Passer domesticus
    # Count: 3
    Date:
    Observer: Roy Howard
    Location: 12400 Triple Crown Rd, North Potomac US-MD 39.09629, -77.25511
  47. Bobolink Dolichonyx oryzivorus
    # Count: 3
    Date:
    Observer: Stacy Rabinovitz
    Location: Homestead Farm (restricted access - bird from roadside)
  48. Northern Cardinal Cardinalis cardinalis
    # Count: 3
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  49. Cackling Goose Branta hutchinsii
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  50. Tundra Swan Cygnus columbianus
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Riley's Lock
  51. Wood Duck Aix sponsa
    # Count: 2
    Date:
    Observer: Jake Klim
    Location: Rock Creek Park--Chevy Chase
  52. Northern Shoveler Spatula clypeata
    # Count: 2
    Date:
    Observer: John Sojda
    Location: C&O Canal--Riley's Lock
  53. Mallard Anas platyrhynchos
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  54. American Black Duck Anas rubripes
    # Count: 2
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  55. Green-winged Teal Anas crecca
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  56. Greater Scaup Aythya marila
    # Count: 2
    Date:
    Observer: Danielle Sliter
    Location: Fallsgrove Stream Valley Park
  57. Wild Turkey Meleagris gallopavo
    # Count: 2
    Date:
    Observer: Tim Carney
    Location: Triadelphia Reservoir--Brighton Dam (Mont. Co.)
  58. Dunlin Calidris alpina
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  59. Bonaparte's Gull Chroicocephalus philadelphia
    # Count: 2
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  60. Common Tern Sterna hirundo
    # Count: 2
    Date:
    Observer: Ryan and Kathryn Carr
    Location: C&O Canal--Pennyfield Lock
  61. Bald Eagle Haliaeetus leucocephalus
    # Count: 2
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  62. Red-shouldered Hawk Buteo lineatus
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  63. Yellow-bellied Sapsucker Sphyrapicus varius
    # Count: 2
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  64. Hairy Woodpecker Dryobates villosus
    # Count: 2
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  65. Pileated Woodpecker Dryocopus pileatus
    # Count: 2
    Date:
    Observer: Dave Czaplak
    Location: Blue Mash Nature Trail
  66. Carolina Chickadee Poecile carolinensis
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  67. Northern Rough-winged Swallow Stelgidopteryx serripennis
    # Count: 2
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Riley's Lock
  68. Cliff Swallow Petrochelidon pyrrhonota
    # Count: 2
    Date:
    Observer: David Roberts
    Location: C&O Canal--Riley's Lock
  69. Carolina Wren Thryothorus ludovicianus
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  70. Eastern Bluebird Sialia sialis
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  71. Lapland Longspur Calcarius lapponicus
    # Count: 2
    Date:
    Observer: John Sojda
    Location: Patton Farms (formerly Patton Turf Farm)
  72. Field Sparrow Spizella pusilla
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  73. Savannah Sparrow Passerculus sandwichensis
    # Count: 2
    Date:
    Observer: John Sojda
    Location: Homestead Farm (restricted access - bird from roadside)
  74. American Redstart Setophaga ruticilla
    # Count: 2
    Date:
    Observer: Greg Cooksey
    Location: Hughes Hollow - McKee Beshers WMA
  75. Snow Goose Anser caerulescens
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Brighton Dam (Mont. Co.)
  76. Greater White-fronted Goose Anser albifrons
    # Count: 1
    Date:
    Observer: Max Wilson
    Location: Blue Mash Nature Trail
  77. Northern Pintail Anas acuta
    # Count: 1
    Date:
    Observer: Dave Powell
    Location: Lois Y. Green Conservation Park
  78. Canvasback Aythya valisineria
    # Count: 1
    Date:
    Observer: Donna Tabora
    Location: Gunners Lake
  79. Redhead Aythya americana
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Black Hill Regional Park, Boyds US-MD 39.19246, -77.29617
  80. Ring-necked Duck Aythya collaris
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  81. Lesser Scaup Aythya affinis
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  82. Long-tailed Duck Clangula hyemalis
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Riley's Lock
  83. Common Goldeneye Bucephala clangula
    # Count: 1
    Date:
    Observer: David Moulton
    Location: Black Hill Regional Park
  84. Red-breasted Merganser Mergus serrator
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Brighton Dam (Mont. Co.)
  85. Pied-billed Grebe Podilymbus podiceps
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  86. Horned Grebe Podiceps auritus
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Riley's Lock
  87. Rock Pigeon Columba livia
    # Count: 1
    Date:
    Observer: Robin Skinner
    Location: Home
  88. Eurasian Collared-Dove Streptopelia decaocto
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Damascus Recreation Center
  89. Mourning Dove Zenaida macroura
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  90. Yellow-billed Cuckoo Coccyzus americanus
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  91. Black-billed Cuckoo Coccyzus erythropthalmus
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: river rd near williard
  92. Eastern Whip-poor-will Antrostomus vociferus
    # Count: 1
    Date:
    Observer: Jared Fisher NFC Station
    Location: Straw Bale Lane
  93. Ruby-throated Hummingbird Archilochus colubris
    # Count: 1
    Date:
    Observer: Pat Parkinson
    Location: 10405 Lloyd Rd, Potomac US-MD 39.05365, -77.21441
  94. Virginia Rail Rallus limicola
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  95. Sora Porzana carolina
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Hughes Hollow - McKee Beshers WMA
  96. Common Gallinule Gallinula galeata
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Hughes Hollow - McKee Beshers WMA
  97. American Coot Fulica americana
    # Count: 1
    Date:
    Observer: Brooke Levey
    Location: Black Hill Regional Park
  98. Black-bellied Plover Pluvialis squatarola
    # Count: 1
    Date:
    Observer: Clive Harris
    Location: Homestead Farm (restricted access - bird from roadside)
  99. Killdeer Charadrius vociferus
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Gunners Lake
  100. Semipalmated Plover Charadrius semipalmatus
    # Count: 1
    Date:
    Observer: Allen Burke
    Location: Lake Needwood
  101. Upland Sandpiper Bartramia longicauda
    # Count: 1
    Date:
    Observer: Gregg Petersen
    Location: Spencerville Academy
  102. Whimbrel Numenius phaeopus
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  103. Wilson's Snipe Gallinago delicata
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Patton Farms (formerly Patton Turf Farm)
  104. Spotted Sandpiper Actitis macularius
    # Count: 1
    Date:
    Observer: Kent Anderson
    Location: Bear Island, Bethesda US-MD (38.9728,-77.2226)
  105. Solitary Sandpiper Tringa solitaria
    # Count: 1
    Date:
    Observer: Ron Johnson
    Location: Blue Mash Nature Trail
  106. Lesser Yellowlegs Tringa flavipes
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  107. Greater Yellowlegs Tringa melanoleuca
    # Count: 1
    Date:
    Observer: Lois Forster
    Location: Blue Mash Nature Trail
  108. White-rumped Sandpiper Calidris fuscicollis
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Sycamore Landing
  109. Semipalmated Sandpiper Calidris pusilla
    # Count: 1
    Date:
    Observer: Eva R
    Location: Lake Needwood
  110. Herring Gull Larus argentatus
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  111. Lesser Black-backed Gull Larus fuscus
    # Count: 1
    Date:
    Observer: David Roberts
    Location: C&O Canal--Violette's Lock
  112. Caspian Tern Hydroprogne caspia
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Triadelphia Reservoir--Greenbridge Rd.
  113. Black Tern Chlidonias niger
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  114. Forster's Tern Sterna forsteri
    # Count: 1
    Date:
    Observer: Howard Youth
    Location: C&O Canal--Lock 7
  115. Common Loon Gavia immer
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Riley's Lock
  116. American White Pelican Pelecanus erythrorhynchos
    # Count: 1
    Date:
    Observer: Carla Morris
    Location: C&O Canal--Violette's Lock
  117. American Bittern Botaurus lentiginosus
    # Count: 1
    Date:
    Observer: Jared Fisher NFC Station
    Location: Straw Bale Lane
  118. Least Bittern Ixobrychus exilis
    # Count: 1
    Date:
    Observer: Jeff Smith
    Location: Hughes Hollow - McKee Beshers WMA
  119. Yellow-crowned Night Heron Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Andy Martin
    Location: Hughes Hollow - McKee Beshers WMA
  120. Black-crowned Night Heron Nycticorax nycticorax
    # Count: 1
    Date:
    Observer: Anonymous eBirder
    Location: Hilltop Road
  121. Little Blue Heron Egretta caerulea
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  122. Green Heron Butorides virescens
    # Count: 1
    Date:
    Observer: Jared Fisher NFC Station
    Location: Straw Bale Lane
  123. Western Cattle Egret Bubulcus ibis
    # Count: 1
    Date:
    Observer: Ed Escalante
    Location: LBRP Golf Course - Prescott Rd
  124. Great Egret Ardea alba
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Conservation Lane
  125. Black Vulture Coragyps atratus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  126. Osprey Pandion haliaetus
    # Count: 1
    Date:
    Observer: John Canoles
    Location: 1300 Power County Road, Brookeville, Maryland, US (39.184, -77.036)
  127. Golden Eagle Aquila chrysaetos
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Moyer Rd. Local Park
  128. Mississippi Kite Ictinia mississippiensis
    # Count: 1
    Date:
    Observer: Howard Youth
    Location: C&O Canal--Violette's Lock
  129. Northern Harrier Circus hudsonius
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  130. Sharp-shinned Hawk Accipiter striatus
    # Count: 1
    Date:
    Observer: Dave Powell
    Location: Lois Y. Green Conservation Park
  131. Cooper's Hawk Accipiter cooperii
    # Count: 1
    Date:
    Observer: Todd Kiraly
    Location: C&O Canal--Violette's Lock
  132. Red-tailed Hawk Buteo jamaicensis
    # Count: 1
    Date:
    Observer: Dave Powell
    Location: Lois Y. Green Conservation Park
  133. Barn Owl Tyto alba
    # Count: 1
  134. Eastern Screech-Owl Megascops asio
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Patuxent River SP--Howard Chapel Rd. (Montgomery Co.)
  135. Great Horned Owl Bubo virginianus
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: Blue Mash Nature Trail
  136. Barred Owl Strix varia
    # Count: 1
    Date:
    Observer: Oliver Patrick
    Location: 5512 Greystone Street, Somerset
  137. Short-eared Owl Asio flammeus
    # Count: 1
    Date:
    Observer: Greg Cooksey
    Location: Blue Mash Nature Trail
  138. Northern Saw-whet Owl Aegolius acadicus
    # Count: 1
  139. Belted Kingfisher Megaceryle alcyon
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  140. Red-headed Woodpecker Melanerpes erythrocephalus
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  141. Red-bellied Woodpecker Melanerpes carolinus
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  142. Downy Woodpecker Dryobates pubescens
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  143. American Kestrel Falco sparverius
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Homestead Farm (restricted access - bird from roadside)
  144. Merlin Falco columbarius
    # Count: 1
    Date:
    Observer: Andy Buchsbaum
    Location: Sligo Creek Park--north end to Dennis Ave.
  145. Peregrine Falcon Falco peregrinus
    # Count: 1
    Date:
    Observer: Nathan Tea
    Location: Blue Mash Nature Trail
  146. Olive-sided Flycatcher Contopus cooperi
    # Count: 1
    Date:
    Observer: Gabriel Urso
    Location: Little Bennett RP--Wilson Mill Trail
  147. Eastern Wood-Pewee Contopus virens
    # Count: 1
    Date:
    Observer: sharon buchanan
    Location: Backyard, Potomac US-MD 39.04432, -77.26707
  148. Acadian Flycatcher Empidonax virescens
    # Count: 1
    Date:
    Observer: Brett Gleitsmann
    Location: Northwest Branch Trail--Burnt Mills
  149. Alder Flycatcher Empidonax alnorum
    # Count: 1
    Date:
    Observer: Stacy Rabinovitz
    Location: Blue Mash Nature Trail
  150. Willow Flycatcher Empidonax traillii
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Royce Hanson Conservation Park, MoCo Parks
  151. Least Flycatcher Empidonax minimus
    # Count: 1
    Date:
    Observer: Anne Mytych
    Location: Watkins Ponds - King Farm Stream Park
  152. Eastern Phoebe Sayornis phoebe
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  153. Great Crested Flycatcher Myiarchus crinitus
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  154. Eastern Kingbird Tyrannus tyrannus
    # Count: 1
    Date:
    Observer: Toni Evans
    Location: C&O Canal--Riley's Lock
  155. White-eyed Vireo Vireo griseus
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Sycamore Landing Road, Poolesville, Maryland, US (39.08, -77.414)
  156. Yellow-throated Vireo Vireo flavifrons
    # Count: 1
    Date:
    Observer: Woody & Rae Dubois
    Location: Summer Tanager Spot
  157. Blue-headed Vireo Vireo solitarius
    # Count: 1
    Date:
    Observer: Martha Morris
    Location: Grand Champion/Piccard Drive/Mattie Stepanek Park/Gaither Road, Rockville Maryland
  158. Warbling Vireo Vireo gilvus
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  159. Red-eyed Vireo Vireo olivaceus
    # Count: 1
    Date:
    Observer: Chaiby Leiman
    Location: Kemp Mill Estates Local Park
  160. Common Raven Corvus corax
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  161. Tufted Titmouse Baeolophus bicolor
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  162. Horned Lark Eremophila alpestris
    # Count: 1
    Date:
    Observer: Todd Kiraly
    Location: Homestead Farm (restricted access - bird from roadside)
  163. Bank Swallow Riparia riparia
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  164. Purple Martin Progne subis
    # Count: 1
    Date:
    Observer: G. Vike Vicente
    Location: NIH Pond
  165. Barn Swallow Hirundo rustica
    # Count: 1
    Date:
    Observer: Joe Hanfman
    Location: C&O Canal--Violette's Lock
  166. Ruby-crowned Kinglet Corthylio calendula
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Blue Mash Nature Trail
  167. Golden-crowned Kinglet Regulus satrapa
    # Count: 1
    Date:
    Observer: Roy Howard
    Location: 12400 Triple Crown Rd, North Potomac US-MD 39.09629, -77.25511
  168. Red-breasted Nuthatch Sitta canadensis
    # Count: 1
    Date:
    Observer: Vickie Baily
    Location: Home
  169. Brown Creeper Certhia americana
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  170. Blue-gray Gnatcatcher Polioptila caerulea
    # Count: 1
    Date:
    Observer: Gail Mackiernan
    Location: NW Branch Park -Sherwood Forest area
  171. House Wren Troglodytes aedon
    # Count: 1
    Date:
    Observer: David Clark
    Location: Hughes Hollow - McKee Beshers WMA
  172. Marsh Wren Cistothorus palustris
    # Count: 1
    Date:
    Observer: Robert Walker
    Location: NIH campus (restricted access; photo i.d. needed)
  173. Gray Catbird Dumetella carolinensis
    # Count: 1
    Date:
    Observer: Heather Clarke
    Location: Blue Mash Nature Trail
  174. Brown Thrasher Toxostoma rufum
    # Count: 1
    Date:
    Observer: Howard Youth
    Location: "East Parkhill"
  175. Veery Catharus fuscescens
    # Count: 1
    Date:
    Observer: Scott Baron
    Location: Damascus Recreational Park
  176. Gray-cheeked Thrush Catharus minimus
    # Count: 1
    Date:
    Observer: Thomas Wetmore
    Location: Timberlake trailhead on north end of street
  177. Hermit Thrush Catharus guttatus
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  178. Wood Thrush Hylocichla mustelina
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: 13407–13499 Sycamore Landing Rd, Poolesville US-MD 39.07882, -77.41682
  179. House Finch Haemorhous mexicanus
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Damascus
  180. Purple Finch Haemorhous purpureus
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  181. Pine Siskin Spinus pinus
    # Count: 1
    Date:
    Observer: Pete Givan
    Location: Little Falls Parkway - Norwood Park
  182. American Goldfinch Spinus tristis
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  183. Grasshopper Sparrow Ammodramus savannarum
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Izaak Walton Way, Poolesville, Maryland, US (39.094, -77.421)
  184. American Tree Sparrow Spizelloides arborea
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  185. Fox Sparrow Passerella iliaca
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blue Mash Nature Trail
  186. Vesper Sparrow Pooecetes gramineus
    # Count: 1
    Date:
    Observer: Jake Klim
    Location: Homestead Farm (restricted access - bird from roadside)
  187. Lincoln's Sparrow Melospiza lincolnii
    # Count: 1
    Date:
    Observer: Robert Fleischer
    Location: 11227 Newport Mill Rd, Kensington US-MD 39.04112, -77.06942
  188. Swamp Sparrow Melospiza georgiana
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: Blue Mash Nature Trail
  189. Yellow-breasted Chat Icteria virens
    # Count: 1
    Date:
    Observer: Neil Heinekamp
    Location: Hughes Hollow - McKee Beshers WMA
  190. Orchard Oriole Icterus spurius
    # Count: 1
    Date:
    Observer: Adeline Louie
    Location: Ken-Gar Palisades Park
  191. Baltimore Oriole Icterus galbula
    # Count: 1
    Date:
    Observer: Renate Wilson
    Location: Olney MD RW
  192. Rusty Blackbird Euphagus carolinus
    # Count: 1
    Date:
    Observer: David Clark
    Location: Ken-Gar Palisades Park
  193. Ovenbird Seiurus aurocapilla
    # Count: 1
    Date:
    Observer: Seth Factor
    Location: Little Falls Branch Stream Valley Park
  194. Worm-eating Warbler Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Jim Ivett
    Location: Hughes Hollow - McKee Beshers WMA
  195. Louisiana Waterthrush Parkesia motacilla
    # Count: 1
    Date:
    Observer: Gail Mackiernan
    Location: Paint Branch Park South
  196. Northern Waterthrush Parkesia noveboracensis
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  197. Blue-winged Warbler Vermivora cyanoptera
    # Count: 1
    Date:
    Observer: Clive Harris
    Location: C&O Canal--White's Ferry
  198. Black-and-white Warbler Mniotilta varia
    # Count: 1
    Date:
    Observer: Lorraine Thorpe
    Location: 5 James Spring Ct, Rockville US-MD 39.07682, -77.17929
  199. Prothonotary Warbler Protonotaria citrea
    # Count: 1
    Date:
    Observer: Roy Howard
    Location: C&O Canal--Mouth of the Monocacy (Mont. Co.)
  200. Tennessee Warbler Leiothlypis peregrina
    # Count: 1
    Date:
    Observer: Will K
    Location: Forest Glen Park
  201. Orange-crowned Warbler Leiothlypis celata
    # Count: 1
    Date:
    Observer: Robin Skinner
    Location: Home
  202. Nashville Warbler Leiothlypis ruficapilla
    # Count: 1
    Date:
    Observer: Jake Klim
    Location: Brookside Gardens
  203. Mourning Warbler Geothlypis philadelphia
    # Count: 1
    Date:
    Observer: hartmut doebel
    Location: Blue Mash Nature Trail
  204. Kentucky Warbler Geothlypis formosa
    # Count: 1
    Date:
    Observer: hartmut doebel
    Location: Agricultural History Farm Park
  205. Common Yellowthroat Geothlypis trichas
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Blue Mash Nature Trail
  206. Hooded Warbler Setophaga citrina
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  207. Cape May Warbler Setophaga tigrina
    # Count: 1
    Date:
    Observer: Howard Youth
    Location: "East Parkhill"
  208. Cerulean Warbler Setophaga cerulea
    # Count: 1
    Date:
    Observer: Scott Baron
    Location: Damascus Recreational Park
  209. Northern Parula Setophaga americana
    # Count: 1
    Date:
    Observer: Jonathan Putnam
    Location: C&O Canal NHP - Lock 8 area
  210. Magnolia Warbler Setophaga magnolia
    # Count: 1
    Date:
    Observer: Ron Johnson
    Location: Lake Needwood
  211. Bay-breasted Warbler Setophaga castanea
    # Count: 1
    Date:
    Observer: Jeff Divers
    Location: 123 South Adams Street, Rockville, Maryland, US (39.081, -77.155)
  212. Blackburnian Warbler Setophaga fusca
    # Count: 1
    Date:
    Observer: Lawrence Rubey
    Location: Holmhurst
  213. Yellow Warbler Setophaga petechia
    # Count: 1
    Date:
    Observer: Ryan and Kathryn Carr
    Location: C&O Canal--Riley's Lock
  214. Chestnut-sided Warbler Setophaga pensylvanica
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Sycamore Landing
  215. Blackpoll Warbler Setophaga striata
    # Count: 1
    Date:
    Observer: Ryan and Kathryn Carr
    Location: Bird tree
  216. Black-throated Blue Warbler Setophaga caerulescens
    # Count: 1
    Date:
    Observer: Matt Cohen
    Location: C&O Canal--Sycamore Landing
  217. Palm Warbler Setophaga palmarum
    # Count: 1
    Date:
    Observer: Igor Taimassov
    Location: C&O Canal--Violette's Lock
  218. Pine Warbler Setophaga pinus
    # Count: 1
    Date:
    Observer: Renate Wilson
    Location: Olney MD RW
  219. Yellow-rumped Warbler Setophaga coronata
    # Count: 1
    Date:
    Observer: Scott Young
    Location: Blue Mash Nature Trail
  220. Prairie Warbler Setophaga discolor
    # Count: 1
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  221. Black-throated Green Warbler Setophaga virens
    # Count: 1
    Date:
    Observer: Clifton Barry
    Location: Black Hill Regional Park
  222. Canada Warbler Cardellina canadensis
    # Count: 1
    Date:
    Observer: Seth Factor
    Location: Little Falls Branch Stream Valley Park
  223. Wilson's Warbler Cardellina pusilla
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Sycamore Landing
  224. Summer Tanager Piranga rubra
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Blockhouse Point Conservation Park
  225. Scarlet Tanager Piranga olivacea
    # Count: 1
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  226. Rose-breasted Grosbeak Pheucticus ludovicianus
    # Count: 1
    Date:
    Observer: Diane Seward
    Location: 10809 Rock Run Drive
  227. Blue Grosbeak Passerina caerulea
    # Count: 1
    Date:
    Observer: Robin Skinner
    Location: Home
  228. Indigo Bunting Passerina cyanea
    # Count: 1
    Date:
    Observer: Adeline Louie
    Location: Northwest Branch Trail--Burnt Mills
  229. Chimney Swift Chaetura pelagica
    # Count: X
    Date:
    Observer: Adeline Louie
    Location: Ken-Gar Palisades Park

Exotic: Escapee (5)

  1. Muscovy Duck Cairina moschata
    # Count: 3
    Date:
    Observer: Roy Howard
    Location: Patton Farms (formerly Patton Turf Farm)
  2. Northern Bobwhite Colinus virginianus
    # Count: 2
    Date:
    Observer: C. Johnson
    Location: Sycamore Landing Rd. fields
  3. Ring-necked Pheasant Phasianus colchicus
    # Count: 1
    Date:
    Observer: John Sojda
    Location: Hughes Hollow - McKee Beshers WMA
  4. Silver Pheasant Lophura nycthemera
    # Count: 1
    Date:
    Observer: hauwa Usman
    Location: Cloverly
  5. Chukar Alectoris chukar
    # Count: 1
    Date:
    Observer: David Roberts
    Location: Sycamore Landing Rd. fields

Hybrids (3)

  1. Domestic goose sp. x Canada Goose (hybrid) Anser sp. (Domestic type) x Branta canadensis
    # Count: 1
    Date:
    Observer: Carlos Muñoz Brenes
    Location: Lake Hallowell
  2. Mallard x American Black Duck (hybrid) Anas platyrhynchos x rubripes
    # Count: 1
    Date:
    Observer: Daniel Obrzut
    Location: Lois Y. Green Conservation Park
  3. Dark-eyed Junco x White-throated Sparrow (hybrid) Junco hyemalis x Zonotrichia albicollis
    # Count: 1
    Date:
    Observer: Denny Porter
    Location: Banner Country Ct

Additional Taxa (46)

  1. blackbird sp. Icteridae sp.
    # Count: 200
    Date:
    Observer: Jared Fisher
    Location: Hughes Hollow - McKee Beshers WMA
  2. crow sp. Corvus sp. (crow sp.)
    # Count: 120
    Date:
    Observer: Andreas Seiter
    Location: C&O Canal--Great Falls
  3. American/Fish Crow Corvus brachyrhynchos/ossifragus
    # Count: 100
    Date:
    Observer: Scott Young
    Location: Blue Mash Nature Trail
  4. finch sp. Fringillidae sp.
    # Count: 12
    Date:
    Observer: Anonymous eBirder
    Location: Copenhaver Drive
  5. Greater/Lesser Scaup Aythya marila/affinis
    # Count: 8
    Date:
    Observer: Max Wilson
    Location: C&O Canal--Violette's Lock
  6. goose sp. Anatidae (goose sp.)
    # Count: 7
    Date:
    Observer: William Heinle
    Location: Blue Mash Nature Trail
  7. tern sp. Sterninae sp.
    # Count: 7
    Date:
    Observer: Igor Taimassov
    Location: C&O Canal--Violette's Lock
  8. gull sp. Larinae sp.
    # Count: 6
    Date:
    Observer: Janette Rosenbaum
    Location: C&O Canal--Great Falls
  9. Setophaga sp. Setophaga sp.
    # Count: 6
    Date:
    Observer: hartmut doebel
    Location: Nature Forward (formerly ANS)- Woodend Sanctuary
  10. peep sp. Calidris sp. (peep sp.)
    # Count: 4
    Date:
    Observer: Dave Czaplak
    Location: C&O Canal--Violette's Lock
  11. passerine sp. Passeriformes sp.
    # Count: 4
    Date:
    Observer: James Nelson
    Location: C&O Canal--Great Falls
  12. new world vulture sp. Cathartidae sp.
    # Count: 3
    Date:
    Observer: Allison Starr
    Location: I-495 W, Silver Spring US-MD 39.01644, -76.99893
  13. new world sparrow sp. Passerellidae sp.
    # Count: 3
    Date:
    Observer: Trent Palmer
    Location: Malcolm King Park
  14. Mallard/American Black Duck Anas platyrhynchos/rubripes
    # Count: 2
    Date:
    Observer: Stephen Davies
    Location: Blue Mash Nature Trail
  15. Common/Red-breasted Merganser Mergus merganser/serrator
    # Count: 2
    Date:
    Observer: Dylan V
    Location: Black Hill Regional Park
  16. Forster's/Common Tern Sterna forsteri/hirundo
    # Count: 2
    Date:
    Observer: Jared Fisher
    Location: C&O Canal--Violette's Lock
  17. woodpecker sp. Picidae sp.
    # Count: 2
    Date:
    Observer: Ed Escalante
    Location: Hughes Hollow - McKee Beshers WMA
  18. wren sp. Troglodytidae sp.
    # Count: 2
    Date:
    Observer: Amy Christianson
    Location: Lake Hallowell
  19. Domestic goose sp. (Domestic type) Anser sp. (Domestic type)
    # Count: 1
    Date:
    Observer: Allison Fomich
    Location: Gunners Lake
  20. Trumpeter/Tundra Swan Cygnus buccinator/columbianus
    # Count: 1
    Date:
    Observer: Christine Ley
    Location: C&O Canal--Violette's Lock
  21. swan sp. Cygnus sp.
    # Count: 1
    Date:
    Observer: Kyle Rambo
    Location: Black Hill RP--Little Seneca Lake, Rte.121
  22. duck sp. Anatidae (duck sp.)
    # Count: 1
    Date:
    Observer: John Sojda
    Location: C&O Canal--Violette's Lock
  23. Lesser/Greater Yellowlegs Tringa flavipes/melanoleuca
    # Count: 1
    Date:
    Observer: Martha Morris
    Location: Green Farm Conservation Park, Gaithersburg US-MD 39.17140, -77.17545
  24. shorebird sp. Charadriiformes sp.
    # Count: 1
    Date:
    Observer: Evelyn Ralston
    Location: National Library of Medicine/Bethesda Trolley Trail
  25. Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violacea
    # Count: 1
    Date:
    Observer: Kirk Owens
    Location: Bohrer Park
  26. white egret sp. Egretta/Bubulcus/Ardea sp.
    # Count: 1
    Date:
    Observer: Patricia L
    Location: C&O Canal--Violette's Lock
  27. Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperii
    # Count: 1
    Date:
    Observer: Elda Banks
    Location: Meadowood Drive, Colesville, MD
  28. Buteo sp. Buteo sp.
    # Count: 1
    Date:
    Observer: Dave Powell
    Location: Homestead Farm (restricted access - bird from roadside)
  29. hawk sp. Accipitridae sp. (hawk sp.)
    # Count: 1
    Date:
    Observer: Daniel Obrzut
    Location: Lois Y. Green Conservation Park
  30. owl sp. Strigiformes sp.
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Damascus
  31. Downy/Hairy Woodpecker Dryobates pubescens/villosus
    # Count: 1
    Date:
    Observer: Daniel Obrzut
    Location: Lois Y. Green Conservation Park
  32. falcon sp. Falco sp.
    # Count: 1
    Date:
    Observer: Cory Kampf
    Location: Blue Mash Nature Trail
  33. diurnal raptor sp. Accipitriformes/Falconiformes sp.
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Moyer Rd. Local Park
  34. Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/traillii
    # Count: 1
    Date:
    Observer: Frank Wang
    Location: C&O Canal--Violette's Lock
  35. Empidonax sp. Empidonax sp.
    # Count: 1
    Date:
    Observer: Matt Peppe
    Location: Lake Frank
  36. new world flycatcher sp. Tyrannidae sp.
    # Count: 1
    Date:
    Observer: Rob Hilton
    Location: Lois Y. Green Conservation Park
  37. vireo sp. Vireo sp.
    # Count: 1
    Date:
    Observer: John McDonough
    Location: Seneca Creek State Park
  38. swallow sp. Hirundinidae sp.
    # Count: 1
    Date:
    Observer: Joshua Berman
    Location: C&O Canal--Old Angler's Inn - Billy Goat Trail Section B - Widewater
  39. Ruby-crowned/Golden-crowned Kinglet Corthylio calendula/Regulus satrapa
    # Count: 1
    Date:
    Observer: Gail Mackiernan
    Location: Paint Branch Park North
  40. Catharus sp. Catharus sp.
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Moyer Rd. Local Park
  41. thrush sp. Turdidae sp.
    # Count: 1
    Date:
    Observer: Ryan and Kathryn Carr
    Location: Rachel Carson Conservation Park
  42. Chipping Sparrow/Worm-eating Warbler Spizella passerina/Helmitheros vermivorum
    # Count: 1
    Date:
    Observer: Ryan Douglas
    Location: Moyer Rd. Local Park
  43. Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensis
    # Count: 1
    Date:
    Observer: Lisa Shannon
    Location: Wheaton Regional Park--Shorefield/mini-train tracks/Pine Lake
  44. new world warbler sp. Parulidae sp.
    # Count: 1
    Date:
    Observer: jim pacheco
    Location: Seneca Creek State Park
  45. bird sp. Aves sp.
    # Count: 1
    Date:
    Observer: Jared Fisher
    Location: Straw Bale Lane
  46. dabbling duck sp. Anatidae sp. (dabbling duck sp.)
    # Count: X
    Date:
    Observer: Leo Prikhodko
    Location: Oaks Landfill (private)