Blue-wattled Bulbul Pycnonotus nieuwenhuisii


Collar, N. J. 2014. Blue-wattled Bulbul Pycnonotus nieuwenhuisii and Black-browed Babbler Malacocincla perspicillata: two Sundaic passerines in search of a life. BirdingASIA 21: 28-33.

Collar, N. J.; Crosby, M. J.; Stattersfield, A. J. 1994. Birds to watch 2: the world list of threatened birds. BirdLife International, Cambridge, U.K.

Williams, R. S. R. 2002. The rediscovery and doubtful validity of the Blue-wattled Bulbul Pycnonotus nieuwenhuisii. Forktail: 107-109.

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Recommended citation
BirdLife International (2020) Species factsheet: Pycnonotus nieuwenhuisii. Downloaded from http://www.birdlife.org on 24/09/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 24/09/2020.