Nesting colonies of Franklin's gulls and white-faced ibis.

Over 30 species nest in the colony, including the white-faced ibis, great blue herons and most notably, the tricolored heron.

This habitat is used extensively for roosting by black-crowned night herons, egrets, and white-faced ibis.

It also has nesting colonies of white-faced ibis, great egrets, and snowy egrets.

The worlds largest populations of White-faced Ibis and California Gulls make their homes near the lake.

Refuge wetlands provide nesting habitat for a variety of other species, including the least bittern, white-faced ibis, black-necked stilt and American avocet.

More than 200 species of birds have been recorded in the wetlands, including white-faced ibis, snowy plover, peregrine falcons, and many species of ducks.

The north shore wetlands are also an important breeding area for Clark's Grebes, White-faced Ibis, and Great Egret.

The White-faced Ibis (Plegadis chihi) is a wading bird in the ibis family Threskiornithidae.

Cheating is not unknown in the birding world: who's to say, after all, that the purplish-black bird you saw was the white-faced ibis instead of the glossy ibis?

Here, amid 9,621 acres of fresh marsh and coastal prairie, are ducks and geese, alligators and armadillos, white-tailed deer and white-faced ibis.

Migratory summer birds such as the white-faced ibis, trumpeter swan, and white pelican are found at snowmelt ponds on the desert floor and at temporal wetlands.

In addition, White-faced Ibis, Great White Egrets, and American Avocets are found in the marshes and along the lake shores.

At Forest Hills Park, there was an uncommon hooded warbler, and among the water birds at Jamaica Bay were a white-faced ibis and seven black terns.

Bird-watchers in the area have documented more than 50 kinds of birds at the reservoir, including the white-faced ibis, green- and blue-winged teals, baldpates, northern shovelers and least sandpipers.

Black terns, Forster's Terns, American avocet, White-faced Ibis, Clark's grebes, and Black-necked stilts are common during the summer months.

The study, reported in Birdscope, the research newsletter of Cornell's Laboratory of Ornithology, contained good news about two other species, the white-faced ibis and the trumpeter swan, which it said showed "dramatic population increases."

During the winter, a number of bald eagles can be observed at the HLWA, and during the spring, the threatened sandhill cranes and other sensitive species such as the white-faced ibis and bank swallow can be found.

Sandhill cranes, Great egrets, Snowy egrets, Black-crowned night herons, White-faced Ibis, Double-crested cormorants, Caspian terns, American white pelicans, and Forster's terns also nest in the Summer Lake wetlands.

Other nesting and or migratory bird species known to inhabit the refuge include White-faced Ibis, Snowy Egret, Long-billed Curlew, Great Blue Heron, American Bittern, and the Black-crowned Night Heron.

According to the Nebraska Birding Trails website, birds found at Harlan County Reservoir have included Common Loon, Black-legged Kittiwake, Parasitic Jaeger, Little Blue Heron, White-faced Ibis, and Sabine's Gull.

In the lower reaches of the Carson River watershed, the Stillwater National Wildlife Refuge hosts large breeding colonies of White-faced Ibis (Plegadis chihi) and is frequented by non-breeding American White Pelicans (Pelecanus erythrorhynchos).

These tremendously rich and diverse wetlands attract more than a quarter million waterfowl, as well as over 20,000 other water birds, including American White Pelicans, Double-crested Cormorants, White-faced Ibis, and several species of egrets, herons, gulls, and terns.

This wetland system provides important habitat for breeding sandhill cranes, trumpeter swans, Franklin's gulls, white-faced Ibis, dabbling and diving ducks, a variety of shore- and grassland birds, as well as habitat for molting and fall-staging waterfowl and cranes.

Some Species Show Increases At the same time, the study showed that two birds that had been on the early warning list, the trumpeter swan and the white-faced ibis, are now increasing significantly, and that the Harris hawk, which had dropped in numbers in the early 1980's, is also bouncing back.