Checklist of the Birds of Delaware County -    330 Species      
 
Seasonal Status Abundance Codes
 
SP - March thru May C - Common: certain to be    seen in suitable habitat in proper season
  U - Uncommon: present,    but not certain to be seen
S - June thru July O - Occasional: seen    annually, but only a few times during a season
  R - Rare: not seen    annually
F - August thru November X - Accidental; less than    three records
 
W - December thru February
 
 
                   
Species SP S F W Species SP S F W
  Greater White-fronted Goose       X       Common Loon U X U R
  Snow Goose O R O O       Pied-billed Grebe U R U U
  Ross's Goose       X       Horned Grebe O   O O
  Brant     R R       Red-necked Grebe R   R R
  Cackling Goose R   R R       Eared Grebe X      
  Canada Goose C C C C       Leach's Storm-Petrel     X  
  Mute Swan R R R R       Northern Gannet X   X  
  Tundra Swan O   O O       Double-crested Cormorant C U C O
  Wood Duck C C C R       Great Cormorant R     R
  Gadwall U   U R       Anhinga   X    
  Eurasian Wigeon X             American Bittern R R R R
  American Wigeon U   U O       Least Bittern O O O  
  American Black Duck U U U U       Great Blue Heron C C C U
  Mallard C C C C       Great Egret C C C R
  Blue-winged Teal U R U R       Snowy Egret U U U  
  Northern Shoveler C R C U       Little Blue Heron R U U  
  Northern Pintail C R C U       Tricolored Heron X R R  
  Green-winged Teal C R C U       Cattle Egret R R R  
  Canvasback R   R R       Green Heron C C C R
  Redhead R   R R       Black-crowned Night-Heron U U U O
  Ring-necked Duck U   U O       Yellow-crowned Night-Heron R R R  
  Greater Scaup O   O O       White Ibis   R R  
  Lesser Scaup R   R R       Glossy Ibis R R R  
  Surf Scoter X   X X       Black Vulture U U U U
  White-winged Scoter     R X       Turkey Vulture C C C C
  Black Scoter     R X       Osprey U R U X
  Long-tailed Duck R   R R       Swallow-tailed Kite   X    
  Bufflehead U X U U       Golden Eagle X   R R
  Common Goldeneye O   O O       Mississippi Kite   X    
  Hooded Merganser U   U U       Northern Harrier U R U O
  Common Merganser C   U C       Sharp-shinned Hawk U R C U
  Red-breasted Merganser R     R       Cooper's Hawk U O U U
  Ruddy Duck U R U U       Northern Goshawk R R O R
  Ring-necked Pheasant O O O O       Bald Eagle U U U U
  Wild Turkey O   O O       Red-shouldered Hawk U R U R
  Northern Bobwhite O O O R       Broad-winged Hawk C U C X
  Red-throated Loon R   R R       Swainson's Hawk     X  
                   
Species SP S F W Species SP S F W
  Red-tailed Hawk C U C C       Red Phalarope     X  
  Rough-legged Hawk R   R R       Black-legged Kittiwake       X
  Yellow Rail X   X         Sabine's Gull     X  
  Black Rail X   R         Bonaparte's Gull O   O  
  King Rail R R R X       Little Gull X      
  Virginia Rail O O O R       Laughing Gull C U C R
  Sora R R R R       Ring-billed Gull C C C C
  Common Gallinule O O O R       Herring Gull U U U U
  American Coot U   U U       Iceland Gull R   R R
  Sandhill Crane   X X         Lesser Black-backed Gull     R R
  Black-bellied Plover R   O X       Glaucous Gull R   R R
  American Golden-Plover X   R         Great Black-backed Gull U U U U
  Wilson's Plover X             Sooty Tern     X  
  Semipalmated Plover U O U         Least Tern     R  
  Piping Plover     X         Gull-billed Tern     X  
  Killdeer U U U U       Caspian Tern O O U  
  American Oystercatcher     X         Black Tern R R R  
  Black-necked Stilt   X X         Common Tern R   R  
  American Avocet X   X         Arctic Tern     X  
  Spotted Sandpiper U U U         Forster's Tern U U C  
  Solitary Sandpiper U O U         Royal Tern     X  
  Greater Yellowlegs U R U R       Black Skimmer     X  
  Willet X   X         Pomarine Jaeger     X  
  Lesser Yellowlegs U R U R       Parasitic Jaeger     X  
  Upland Sandpiper R R R         Dovekie       X
  Whimbrel X   X         Rock Pigeon C C C C
  Black-tailed Godwit     X         Mourning Dove C C C C
  Hudsonian Godwit   R R         Yellow-billed Cuckoo O O O  
  Marbled Godwit   R           Black-billed Cuckoo O O O  
  Ruddy Turnstone R     X       Barn Owl R R R R
  Red Knot R   X         Eastern Screech-Owl U U U U
  Sanderling     R         Great Horned Owl U U U U
  Semipalmated Sandpiper U O C         Snowy Owl R     R
  Western Sandpiper   O O         Barred Owl R R R R
  Least Sandpiper U O C X       Long-eared Owl R   R R
  White-rumped Sandpiper   O O         Short-eared Owl R R R R
  Baird's Sandpiper   O O         Northern Saw-whet Owl R   R R
  Pectoral Sandpiper U O U X       Common Nighthawk O O U  
  Dunlin O   O R       Eastern Whip-poor-will R R R  
  Curlew Sandpiper   X X         Chimney Swift C C C  
  Stilt Sandpiper     O         Ruby-throated Hummingbird U C U  
  Buff-breasted Sandpiper     R         Rufous Hummingbird     X X
  Ruff R   R X       Belted Kingfisher U U U O
  Short-billed Dowitcher O   O         Red-headed Woodpecker R   R R
  Long-billed Dowitcher   R R         Red-bellied Woodpecker C C C C
  Wilson's Snipe U   U U       Yellow-bellied Sapsucker O   O O
  American Woodcock O O O R       Downy Woodpecker C C C C
  Wilson's Phalarope R   R         Hairy Woodpecker U U U U
  Red-necked Phalarope X   R         Black-backed Woodpecker X     X
                   
Species SP S F W Species SP S F W
  Northern Flicker C C C C       Carolina Wren C C C C
  Pileated Woodpecker O O O O       Blue-gray Gnatcatcher C C C R
  American Kestrel U U C U       Golden-crowned Kinglet U   U O
  Merlin R   O R       Ruby-crowned Kinglet C   C O
  Peregrine Falcon R R O R       Eastern Bluebird U U U U
  Olive-sided Flycatcher O R O         Veery C C C  
  Eastern Wood-Pewee C C C         Gray-cheeked Thrush O   O  
  Yellow-bellied Flycatcher O   O         Swainson's Thrush U   U  
  Acadian Flycatcher C C C         Hermit Thrush     U O
  Alder Flycatcher R   R         Wood Thrush U U U X
  Willow Flycatcher U C U         American Robin C C C C
  Least Flycatcher O X O         Varied Thrush       X
  Eastern Phoebe U U U         Gray Catbird C C C R
  Say's Phoebe     X         Northern Mockingbird C C C C
  Great Crested Flycatcher U U U         Brown Thrasher O O O R
  Western Kingbird     R         European Starling C C C C
  Eastern Kingbird C C C         American Pipit O   O R
  Scissor-tailed Flycatcher     X         Cedar Waxwing U U U U
  Loggerhead Shrike R   R R       Lapland Longspur R   R R
  Northern Shrike X   X X       Snow Bunting O   O O
  White-eyed Vireo C C C         Ovenbird C C C R
  Yellow-throated Vireo O O O         Worm-eating Warbler O R O  
  Blue-headed Vireo O   O         Louisiana Waterthrush O O O  
  Warbling Vireo U U U         Northern Waterthrush O   O  
  Philadelphia Vireo X   O         Blue-winged Warbler U U U  
  Red-eyed Vireo C C C         Golden-winged Warbler R   R  
  Blue Jay C C C C       Black-and-white Warbler U R U X
  American Crow C C C C       Prothonotary Warbler R R    
  Fish Crow O O O O       Swainson's Warbler     X  
  Common Raven U U U U       Tennessee Warbler O   O  
  Horned Lark R R R R       Orange-crowned Warbler R   R R
  Northern Rough-winged Swallow U U U         Nashville Warbler O   O X
  Purple Martin U U U         Connecticut Warbler X   R  
  Tree Swallow C C C         Mourning Warbler R   R  
  Bank Swallow U R U         Kentucky Warbler O O O  
  Barn Swallow C C C         Common Yellowthroat C C C R
  Cliff Swallow O O O         Hooded Warbler O O O  
  Cave Swallow     X         American Redstart C U C  
  Carolina Chickadee C C C C       Cape May Warbler O   O X
  Black-capped Chickadee R   R O       Cerulean Warbler R R R  
  Boreal Chickadee X   X X       Northern Parula U U U  
  Tufted Titmouse C C C C       Magnolia Warbler U   U  
  Red-breasted Nuthatch U R U U       Bay-breasted Warbler O   O  
  White-breasted Nuthatch U U U U       Blackburnian Warbler O   O  
  Brown Creeper O X O O       Yellow Warbler C C C X
  House Wren C C C R       Chestnut-sided Warbler U U U  
  Winter Wren O   O O       Blackpoll Warbler U R U  
  Sedge Wren     R         Black-throated Blue Warbler U   U  
  Marsh Wren U U U R       Pine Warbler O R O R
                   
Species SP S F W Species SP S F W
  Palm Warbler U   U R       Rusty Blackbird O   O O
  Yellow-rumped Warbler C   C O       Brewer's Blackbird X     X
  Yellow-throated Warbler O R R         Common Grackle C C C U
  Prairie Warbler U U U         Brown-headed Cowbird C C C U
  Black-throated Gray Warbler     X         Orchard Oriole O O O  
  Townsend's Warbler     X         Baltimore Oriole C C C R
  Black-throated Green Warbler U   U X       Pine Grosbeak     X X
  Canada Warbler O R O         Purple Finch O   O O
  Wilson's Warbler O   O R       House Finch C C C C
  Yellow-breasted Chat O O O R       Red Crossbill R   R R
  Eastern Towhee U U U O       White-winged Crossbill R   R R
  American Tree Sparrow O   O O       Common Redpoll R   R R
  Chipping Sparrow C C C R       Pine Siskin R   R R
  Clay-colored Sparrow R   R X       American Goldfinch C C C C
  Field Sparrow U U U O       Evening Grosbeak R   R R
  Vesper Sparrow R   O R       House Sparrow C C C C
  Lark Sparrow     X X          
  Savannah Sparrow O   O R  
  Grasshopper Sparrow R R     Total Species 330
  LeConte's Sparrow X     X  
  Nelson's Sharp-tailed Sparrow X   X    
  Seaside Sparrow X        
  Fox Sparrow O   O O Additional Species        
  Song Sparrow C C C C Hypothetical: may have    occurred        
  Lincoln's Sparrow O   O X       King Eider        
  Swamp Sparrow U U U O       Ruffed Grouse        
  White-throated Sparrow C R C C       Audubon's Shearwater        
  White-crowned Sparrow O   O R       Clapper Rail        
  Golden-crowned Sparrow       X       Black Guillemot        
  Dark-eyed Junco C   C C       Atlantic Puffin        
  Summer Tanager R   X         Bewick's Wren        
  Scarlet Tanager U U U            
  Western Tanager X        
  Northern Cardinal C C C C  
  Rose-breasted Grosbeak U R U   Extirpated: formerly occurred        
  Black-headed Grosbeak X             Whooping Crane        
  Blue Grosbeak O O O         Red-cockaded Woodpecker        
  Indigo Bunting C C C X          
  Painted Bunting X     X  
  Dickcissel R   R R Extinct        
  Bobolink O O U X       Passenger Pigeon        
  Red-winged Blackbird C C C U          
  Eastern Meadowlark O R O R  
  Yellow-headed Blackbird R     R