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Apr 19, 2012

Podilymbus podiceps

MOLT: Molt is poorly known. Palmer (1962) noted that a complete molt into basic plumage takes place in autumn, with considerable individual variation in its timing and duration (Cramp et al. 1977). Flight feathers are lost simultaneously, prior to loss of body feathers. Complete molt takes one to two months. Basic molt and late nesting may occur simultaneously (Otto and Strohmeyer 1985). A parti...
Apr 19, 2012

Brachyramphus marmoratus

A chunky seabird with a black bill and an entirely dark tail. Breeding adult is dark brown above, heavily mottled below. In winter plumage, white below, with white scapular streak on otherwise dark upperparts. Juvenile resembles winter adult but has dusky-mottled underparts, which become mostly white by the first winter. (NGS 1983). Source: Encyclopedia of Life
Apr 19, 2012

Asio flammeus

) that apparently aids adults in locating them from the time they leave the nest until after fledging. Adult owls may squeal while feigning injury during broken-wing acts to distract intruders from nests or young. Both young and adults will clack their bills when annoyed or in defense. Apparently, no data exist on the use of broadcasting tape-recorded vocalizations for detection or monitoring pu...