This gallery contains 4 photos.
Social Signaling A book I received for Christmas got me interested in melanins in bird feathers. Melanins are pigments found in most organisms. Their chemistry is complex and their functions in many organisms are not understood. In birds they are … Continue reading
Tagged American White Pelican, Charadrius vociferus, Dark-eyed Junco, feather color, Junco hyemalis, killdeer, melanin, Melospiza melodia, natural history, Pelecanus erythrorhynchos, song sparrow
On Monday I posted photographs of a common merganser (Mergus merganser) speeding through the water while leaving a wake like a motorboat. (Common Merganser Courtship?? 05-01-2017) Meanwhile. . . . an American white pelican (Pelecanus erythrorhynchos) was following the merganser. … Continue reading
This breeding season was a good one for American white pelicans (Pelecanus erythrorhynchos). Many juveniles are swimming among their elders at Baum Lake (Shasta County CA), where this photograph was taken. Like adults, a juvenile American white pelican appears entirely … Continue reading
I certainly misinterpreted something I saw at Baum Lake. Throughout the spring I have been watching the pelicans at the lake in the hope of seeing some chicks or nesting adults. When I saw these pelicans with their dark grey … Continue reading
Male and female American white pelicans (Pelecanus erythrorhynchos) develop a fibrous keel (knob or horn) on their culmen (top bill) during the breeding season. The keels can be up to two inches high. After the pelicans mate and lay their … Continue reading