27 Water Birds in Colorado (Complete Guide)

Nestled within the heart of the Rocky Mountains, Colorado offers a unique blend of habitats that attract a variety of water birds. From the tranquil shores of its alpine lakes to the flowing rivers snaking through rugged canyons, each landscape presents a picturesque backdrop to the state’s diverse avian life.

Colorado water birds

Water Bird FrequencyWhere to Find in Colorado
American White PelicanCommonBarr Lake State Park, Cherry Creek Reservoir
Brown PelicanRareOccasionally sighted at Barr Lake State Park
Western GrebeCommonBoyd Lake State Park, Jackson Lake State Park
Clark's GrebeUncommonSeen in larger bodies of water like Cherry Creek Reservoir
American CootVery CommonCherry Creek State Park, Barr Lake State Park
Double-Crested CormorantCommonBarr Lake State Park, Aurora Reservoir
MallardVery CommonCity Park in Denver, Pueblo City Park
Northern PintailCommonRocky Mountain Arsenal, Walden Ponds
BuffleheadUncommonBoyd Lake State Park, Cherry Creek State Park
Snowy EgretCommonJohn Martin Reservoir, Barr Lake State Park
Great EgretCommonChatfield State Park, St. Vrain State Park
Great Blue HeronVery CommonStandley Lake, Roxborough State Park
Green HeronCommonJohn Martin Reservoir, Cherry Creek State Park
Black-Crowned Night-HeronCommonDenver City Park, Pueblo City Park
White-Faced IbisUncommonOccasionally sighted at Barr Lake State Park
California GullCommonPueblo Reservoir, Boyd Lake State Park
Ring-Billed GullVery CommonCherry Creek Reservoir, Boyd Lake State Park
American AvocetCommonBarr Lake State Park, John Martin Reservoir
Black-necked StiltUncommonPueblo Reservoir, John Martin Reservoir
Sandhill CraneUncommonMonte Vista Wildlife Refuge, Fruitgrowers Reservoir
Lesser ScaupCommonBoyd Lake State Park, Pueblo City Park
Ruddy DuckCommonCherry Creek Reservoir, Barr Lake State Park
Northern ShovelerCommonCherry Creek Reservoir, Boyd Lake State Park
Surf ScoterRareOccasionally sighted in larger bodies of water
Red-breasted MerganserUncommonCherry Creek Reservoir, Boyd Lake State Park
Common MerganserVery CommonChatfield State Park, Cherry Creek Reservoir
OspreyCommonBarr Lake State Park, Boyd Lake State Park

Water Bird Species Found in Colorado 

Where to Spot Colorado’s Water Birds

Barr Lake State Park:

Located northeast of Denver, this park is known as a birder’s paradise. The reservoir is a significant rest stop for migratory birds and home to a large variety of water birds, including pelicans, herons, and a number of duck species. The park also hosts one of Colorado’s largest heron rookeries.

Alamosa National Wildlife Refuge:

Situated in the San Luis Valley, this refuge encompasses wetlands, riparian corridors, and short-grass prairie habitats. A prime location for observing a diverse variety of water birds, including Sandhill Cranes, the area is a significant stopover for migratory birds.

Rocky Mountain National Park:

The park’s varied ecosystems from lowland marshes to alpine lakes make it a perfect habitat for a wide range of water bird species. You might spot the American Dipper here, North America’s only aquatic songbird, along with various species of ducks, grebes, and herons.

Cherry Creek State Park:

Close to Denver, this park offers a large reservoir and wetland habitats. It’s a great spot to see a variety of water birds, including a wide range of ducks, cormorants, and herons.

John Martin Reservoir State Park:

Located in southeastern Colorado, this is one of the largest bodies of water in the state. It attracts a wide variety of water birds, including pelicans, herons, and numerous duck species, making it a significant bird-watching site.

There are literally hundreds of waterbirds in Colorado, from the canada goose and snow geese (canada geese being most common) to ducks such as the mallard duck, blue winged teal and the green winged teal (two similarly sized birds but you can spot the green with its bright green head and green ear patch) to the common teal notable by having no vertical white stripes, to a whole host of wading birds in Colorado springs. Then they are fabulous large birds such as the greater yellowlegs (known for its yellow legs) as well as a wide range of other bird species in Colorado including birds of prey such as bald eagles.

Neighboring StateBest Spots for Birdwatching
Wyoming Water BirdsSeedskadee National Wildlife Refuge, Jackson Lake, Keyhole State Park
Nebraska Water BirdsRowe Sanctuary, Crane Trust Nature & Visitor Center, Crescent Lake National Wildlife Refuge
Kansas Water BirdsCheyenne Bottoms Wildlife Area, Quivira National Wildlife Refuge , Marais Des Cygnes National Wildlife Refuge
Oklahoma Water BirdsSalt Plains National Wildlife Refuge, Sequoyah National Wildlife Refuge, Wichita Mountains Wildlife Refuge
New Mexico Water BirdsBosque del Apache National Wildlife Refuge, Bitter Lake National Wildlife Refuge, Elephant Butte Lake State Park
Utah Water BirdsGreat Salt Lake, Bear River Migratory Bird Refuge, Fish Springs National Wildlife Refuge
Arizona Water BirdsKofa National Wildlife Refuge, Havasu National Wildlife Refuge, Patagonia-Sonoita Creek Preserve