6/7/26 $9.00 6/18 9 3/4" x 2 3/4" + 13 7/2 = 18 39 10 + c-10 90 Most birds are migratory therefore their seasonal occurrence is coded as follows: 6/7/26 SEASON - March, April, May + 2 = 104 s - Spring March-May S - Summer June-August F - Fall September-November W - Winter December-February T = Nesting has occurred on the refuge. RELATIVE ABUNDANCE a - abundant a species which is very numerous. c - common certain to be seen or heard in suitable habitat. u - uncommon present, but not certain to be seen. o - occasional seen only a few times during a season. r - rare seen at intervals of 2 to 5 years. The 262 species listed here are in accordance with the fifth (1959) A.O.U. Check List as amended. LOONS - GREBES - COMORANTS - HERONS - IBISES - SWANS, GEESE, & DUCKS s S F W Common Loon a r c Red-throated Loon c c c Red-necked Grebe r r r Horned Grebe a r a a Pied-billed Grebe u c c c Gannet u u u Double-crested Cormorant c c u Great Blue Heron c c c c Green Heron c c c r Little Blue Heron c c c o Cattle Egret c c c c s S F W Great Egret a a u Snowy Egret a a r Louisiana Heron a a r Black-crowned Night Heron c c c u Yellow-crowned Night Heron o o o Least Bittern r r r American Bittern u u u Glossy Ibis c a r White Ibis r r r Mute Swan o o o Whistling Swan u u u Canada Goose a a c Brant a a a Snow Goose c c u Fulvous Tree Duck r r r Mallard c c c Black Duck c a a Gadwall c c c Pintail c r c c Green-winged Teal a r c Blue-winged Teal a c a r European Wigeon r r r American Wigeon o o o Northern Shoveler a o a a Wood Duck o o o r Redhead o o o r Ring-necked Duck u u u Canvasback r u u Greater Scaup u u u Lesser Scaup u u u Common Goldeneye u u u Bufflehead a c a Oldsquaw c c c Common Eider r r r White-winged Scoter c c u Surf Scoter a a a Common Scoter c c c Ruddy Duck c o c c Hooded Merganser u c c Common Merganser r u u Red-breasted Merganser c r c c VULTURES - HAWKS - EAGLES - QUAIL- RAILS - COOTS - PLOVERS s S F W Turkey Vulture o o o Sharp-shinned Hawk u o u Cooper's Hawk u u u Red-tailed Hawk u u u Red-shouldered Hawk r o o Rough-legged Hawk r o o Bald Eagle o o o Marsh Hawk c c c Osprey c c c Peregrine Falcon u o u Merlin o o o American Kestrel u r c u Bobwhite a a a s King Rail r r r Clapper Rail a a a u Virginia Rail u u u Sora u u u Black Rail r r r Common Gallinule o u u u American Coot c o a c American Oystercatcher c c c u Semipalmated Plover c c c Piping Plover c c u Wilson's Plover u u u Killdeer u u u u American Golden Plover r o o Black-bellied Plover c c c u Ruddy Turnstone u u u SNIPES - SANDPIPERS - PHALAPOPES - GULLS & TERNs - SKIMMERS s S F W American Woodcock c c u Common Snipe c c u Whimbrel c a u r Upland Sandpiper r r r Spotted Sandpiper c u c Solitary Sandpiper r u u Willett a a u r s S F W Greater Yellowlegs c c c u Lesser Yellowlegs c c a o Red Knot c c u r Pectoral Sandpiper u c c White-rumped Sandpiper r u u Baird's Sandpiper r r o Least Sandpiper a a a o Curlew Sandpiper r r r r Dunlin a a a a Short-billed Dowitcher a a a c Long-billed Dowitcher r r o u Stilt Sandpiper r c u Semipalmated Sandpiper a a a a Western Sandpiper c u c u Buff-breasted Sandpiper r Marbled Godwit r u o Hudsonian Godwit u o o Ruff o o o Sanderling a a a c American Avocet r o u r Black-necked Stilt r r r Wilson's Phalarope o o o Northern Phalarope r r r Glaucous Gull o o o Iceland Gull o o o Great Black-backed Gull c u c c Herring Gull a c a a Ring-billed Gull a a a r Laughing Gull a a a r Bonaparte's Gull u u u u Little Gull r r r r Gull-billed Tern u u o Forster's Tern a a a r Common Tern a a a o Roseate Tern c r r Least Tern c c r Royal Tern c c c Sandwich Tern c c c Caspian Tern c c c Black Tern u a a Black Skimmer c c c r Dovekie r DOVES - CUCKOOS - OWLS - NIGHTHAWKS - HUMMINGBIRDS - KINGFISHERS - WOODPECKERS s S F W Rock Dove r r r Mourning Dove c c c c Yellow-billed Cuckoo c c c Black-billed Cuckoo u r u u Barn Owl o o o Screech Owl c c c c Great Horned Owl c c c c Short-eared Owl o o o Chuck-will's-widow c c c Common Nighthawk u c u Chimney Swift c c c Ruby-throated Hummingbird u u u Belted Kingfisher u c c c Common Flicker c a c c Red-bellied Woodpecker r r o o Red-headed Woodpecker o r r Yellow-bellied Sapsucker r o o Hairy Woodpecker r r o o Downy Woodpecker u u u u WOOD PEWEE