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LeCroy, Mary (2003). "Type specimens of birds in the American Museum of Natural History. Part 5. Passeriformes: Alaudidae, Hirundinidae, Motacillidae, Campephagidae, Pycnonotidae, Irenidae, Laniidae, Vangidae, Bombycillidae, Dulidae, Cinclidae, Troglodytidae, and Mimidae". Bulletin of the American Museum of Natural History. 278 (1): 1–156. doi:10.1206/0003-0090 (2003) 278<0001:TSOBIT>2.0.CO;2. {{cite journal}}: ตรวจสอบค่า |doi= (help); ไม่รู้จักพารามิเตอร์ |month= ถูกละเว้น (help)
BirdLife International (2004). Heliopais personatus. 2007 IUCN Red List of Threatened Species. IUCN 2007. Retrieved on 17 April 2008. Database entry includes justification for why this species is vulnerable
BirdLife International (2006). Mycteria cinerea. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes a range map, a brief justification of why this species is vulnerable, and the criteria used
BirdLife International (2006). Pitta granatina. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 17 May 2008. Database entry includes a brief justification of why this species is near threatened
BirdLife International (2006). Pitta caerulea. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 17 May 2008. Database entry includes a brief justification of why this species is near threatened
BirdLife International (2006). Pitta elliotii. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 17 May 2008. Database entry includes a brief justification of why this species is near threatened