Siberian chiffchaff Siberian chiffchaff Siberian chiffchaff ("Phylloscopus (collybita) tristis") is a leaf-warbler which is usually considered a subspecies of the common chiffchaff, but may be a species in its own right. Siberian chiffchaff breeds in Siberia east of the Pechora River and winters in the lower Himalayas. It is also regularly recorded in western Europe in winter, and it is likely that the numbers involved have been underestimated due to uncertainties over identification criteria, lack of good data and recording policies (Sweden and Finland only accept trapped birds). Because of their unfamiliar appearance, British records in the 1950s and 1960s were originally
Field Guide to the Birds of Australia (Simpson & Day) Field Guide to the Birds of Australia (Simpson & Day) The Simpson & Day Field Guide to the Birds of Australia is one of the main national bird field guides used by Australian birders, which over the years has evolved through several revised and updated editions. Total sales exceed 500,000 copies. The book was first published in 1984 by Lloyd O’Neil as "The Birds of Australia", in hardcover format with a dust jacket, 285 mm high by 215 mm wide and weighing 1.7 kg. It contained illustrations by Nicolas Day of 758 species on 128 colour plates. It was divided