Louisiade whistler explained

The Louisiade whistler (Pachycephala collaris) is a species of bird in the family Pachycephalidae, which is endemic to the Louisiade Archipelago south-east of New Guinea. It was split from the Bismarck whistler by the IOC in 2015.^[1]

Taxonomy and systematics

It has been variably considered a subspecies of a widespread golden whistler (P. pectoralis) or treated as a separate species, but strong published evidence in favour of either treatment is limited, and further study is warranted to resolve the complex taxonomic situation.^[2]

Subspecies

Two subspecies are recognized:^[3]

• P. c. collaris - Ramsay, 1878: Found in the Louisiade Archipelago except Rossel Island
• P. c. rosseliana - Hartert, 1898: Originally described as a separate species. Found on Rossel Island (Louisiade Archipelago)

Notes and References

1. IOC World Bird List 5.1. IOC World Bird List Datasets. 10.14344/ioc.ml.5.1. free.
2. 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.
3. IOC World Bird List 6.3. IOC World Bird List Datasets. 10.14344/ioc.ml.6.3. free.