fish) were conspicuous by the presence of users such as American White Pelican
, cormorants and herons.
Continued surveillance of American white pelican
colonies is useful for assessing long-term effects of WNV in colonies and in populations in the northern plains and upper Midwest region of the United States.
American white pelicans
(Pelecanus erythrorynchus) are more than 50 inches long, with wingspans of 110 inches.
Other birds of interest include American white pelicans
, zone-tailed hawks, many warbler species, indigo buntings, Franklin's and laughing gulls, black-throated sparrows, yellow-breasted chats and American pipits.
Permanent residents such as darting purple martins and ubiquitous red-winged black birds give way to larger egrets and American white pelicans
Soaring on black-tipped wings, American white pelicans
flap into view this time of year.
The outbreak also sickened and killed birds from another 35 species, including American white pelicans
Once again it's possible to see 20,000 American white pelicans
or 500,000 ducks in a single day.
More than 8,000 American white pelicans
(Pelecanus erythrorhynchos) and 1,500 brown pelicans succumbed.
The breast feathers of Brown Pelicans have much smaller barb diameters and higher (r + d)/r values than those of American White Pelicans