ON THE NATURE AND ORIGIN OF THE FEATHER COLOURATION IN THE GREAT WHITE PELICAN PELECANUS ONOCROTALUS ROSEUS IN ETHIOPIA

Autor: R. M. Baxter, Emil K. Urban
Rok vydání: 2008
Předmět:
Zdroj: Ibis. 112:336-339
ISSN: 0019-1019
Popis: Summary The yellow or orange-brown colour on the breast feathers and to a lesser extent on other feathers of the Great White Pelican in a breeding colony on an island in Lake Shala, Ethiopia, is due to the presence of ferric oxide. The feathers most probably become stained when the birds are in the water, and the source of the ferric oxide may be iron–rich silt carried into the lake by the Gidu River.
Databáze: OpenAIRE