gyrfalcon Definition

falco rusticolus, gerfalcon, snowy owl, peregrine, glaucous gull, goshawk, tundra swan, trumpeter swan, peregrine falcon, harlequin duck, cattle egret, falcon, snowy egret, honey buzzard, shrike, gray jay, tufted duck, haliaeetus, hawk owl, andean condor, northern harrier, rusty blackbird, summer tanager, gray catbird, whimbrel, jaegers, northern shrike, sandhill crane, tufted puffin, kingbird, bobolink, spruce grouse, redstart, gadwall, lesser yellowlegs, phalaropes, avocet, merganser, roseate spoonbill, greater yellowlegs, great horned owl, scarlet tanager, hooded merganser, bufflehead, vesper sparrow, flycatcher, western tanager, baltimore oriole, pipit, goldeneyes, oystercatcher, willet, sifaka, ovenbird, cedar waxwing, lesser scaup, yellowlegs, common yellowthroat, pectoral sandpiper, loggerhead shrike, pochard, junco, brown creeper, horned owl, tanager, whooper, yellow warbler, ivory gull, jabiru, marsh wren, dickcissel, winter wren, downy woodpecker, belted kingfisher, great blue heron, upland sandpiper, auks, killdeer, orchard oriole, spotted sandpiper, pine grosbeak, ptarmigan, harpy eagle, ringneck, ruddy turnstone, guenon, vireo, indigo bunting, eastern meadowlark, auklet, binturong, razorbill, surf scoter, sedge wren, elephant shrew, golden plover, grebe, oriole, hudsonian godwit, dunlin,