The Bismarck whistler (Pachycephala citreogaster) is a species of bird in the family Pachycephalidae, which is endemic to the Bismarck Archipelago north-east of New Guinea.
Taxonomy and systematics Prior to 2015, the western whistler was considered as a subspecies of the Australian golden whistler until recognized as a separate species. Some other authorities still consider it to be a subspecies of a wide-ranging golden whistler, but strong published evidence in favour of either treatment is limited, and further study is warranted to resolve the complex taxonomic situation.Boles, W. E. (2007). Golden Whistler (Pachycephala pectoralis). pp. 421-423 in: del Hoyo, J.; Elliot, A. & Christie, D. eds (2007). Handbook of the Birds of the World. Volume 12: Picathartes to Tits and Chickadees. Lynx Edicions, Barcelona.
Subspecies Five subspecies are recognized: P. c. citreogaster – Ramsay, 1876: Found on New Hanover, New Britain and New Ireland (Bismarck Archipelago) P. c. sexuvaria – Rothschild & Hartert, 1924: Found on St. Matthias Islands (northern Bismarck Archipelago) P. c. goodsoni – Rothschild & Hartert, 1914: Found on Admiralty Islands (north of New Guinea) P. c. tabarensis – Mayr, 1955: Found on Tabar Island (eastern Bismarck Archipelago) P. c. ottomeyeri – Stresemann, 1933: Found on Lihir Island (eastern Bismarck Archipelago)
Description The males of the Bismarck whistler are white-throated unlike the yellow-throated males of the oriole whistler (P. orioloides) to the south-east.
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