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Louisiade whistler
Male illustration by William Matthew Hart
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Pachycephalidae
Genus:	Pachycephala
Species:	P. collaris
Binomial name
Pachycephala collaris Ramsay, 1878
Subspecies
See text

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.

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.

Subspecies

Two subspecies are recognized:

• 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)

References

1. "IOC World Bird List 5.1". IOC World Bird List Datasets. doi:10.14344/ioc.ml.5.1.
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. ISBN 978-84-96553-42-2
3. "IOC World Bird List 6.3". IOC World Bird List Datasets. doi:10.14344/ioc.ml.6.3.

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• Pachycephala
• Birds of the Louisiade Archipelago
• Birds described in 1878
• Endemic birds of Papua New Guinea
• Corvoidea stubs