Centrocercus urophasianus Spruce grouse, Canachites canadensis Willow ptarmigan, Lagopus lagopus Rock ptarmigan, Lagopus muta White-tailed ptarmigan, Lagopus leucura Dusky grouse, Dendragapus obscurus Sooty grouse, Dendragapus fuliginosus Sharp-tailed grouse, Tympanuchus phasianellus Greater prairie-chicken, Tympanuchus cupido (Ex) Grey partridge, Perdix perdix (I) Ring-necked pheasant, Phasianus colchicus (I) Silver pheasant, Lophura nycthemera (I) (LC) Chukar, Alectoris chukar (I) Flamingos Order: PhoenicopteriformesFamily: Phoenicopteridae Flamingos (genus Phoenicopterus monotypic in family Phoenicopteridae) are gregarious wading birds, usually tall, found in both the Western and Eastern Hemispheres. Flamingos filter-feed on shellfish and algae. Their oddly-shaped beaks are specially adapted to separate mud and silt from the food they consume and, uniquely, are used upside-down. American flamingo, Phoenicopterus ruber (A) Grebes Order: PodicipediformesFamily: Podicipedidae Grebes are small to medium-large freshwater diving birds. They have lobed toes and are excellent swimmers and divers. However, they have their feet placed far back on the body, making them quite ungainly on land. Pied-billed grebe, Podilymbus podiceps Horned grebe, Podiceps auritus Red-necked grebe, Podiceps grisegena Eared grebe, Podiceps nigricollis Western grebe, Aechmophorus occidentalis Clark's grebe, Aechmophorus clarkii Pigeons and doves Order: ColumbiformesFamily: Columbidae Pigeons and doves are stout-bodied birds with short necks and short slender bills with a fleshy cere. Rock pigeon, Columba livia (I) Common wood pigeon, Columba palumbus (A) White-crowned pigeon, Patagioenas leucocephala (A) Band-tailed pigeon, Patagioenas fasciata Oriental turtle-dove, Streptopelia orientalis (A) Eurasian collared-dove, Streptopelia decaocto (I) Passenger pigeon, Ectopistes migratorius (E) Inca dove, Columbina inca (A) Common ground dove, Columbina passerina (A) White-winged dove, Zenaida asiatica (A) Mourning dove, Zenaida macroura Cuckoos Order: CuculiformesFamily: Cuculidae The family Cuculidae includes cuckoos, roadrunners, and anis. These birds are of variable size with slender bodies, long tails, and strong legs. Groove-billed ani, Crotophaga sulcirostris (A) Common cuckoo, Cuculus canorus (A) Yellow-billed cuckoo, Coccyzus americanus Black-billed cuckoo, Coccyzus erythropthalmus Nightjars and allies Order: CaprimulgiformesFamily: Caprimulgidae Nightjars are medium-sized nocturnal birds that usually nest on the ground. They have long wings, short legs, and very short bills. Most have small feet, of little use for walking, and long pointed wings. Their soft plumage is cryptically coloured to resemble bark or leaves. Lesser nighthawk, Chordeiles acutipennis Common nighthawk, Chordeiles minor Common poorwill, Phalaenoptilus nuttallii Chuck-will's-widow, Antrostomus carolinensis Eastern whip-poor-will, Antrostomus vociferus Swifts Order: ApodiformesFamily: Apodidae The swifts are small birds which spend the majority of their lives flying. These birds have very short legs and never settle voluntarily on the ground, perching instead only