Category:References - BirdForum Opus

• Brinkley, ES. 2007. Field Guide to Birds of North America. New York: Sterling Publishing Co., Inc. ISBN 978-1402738746

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• Clements, JF. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell Univ. Press. ISBN 978-0801445019

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• Clements, JF. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to July 2007. Ithaca: Cornell Univ. Press. ISBN 978-0801445019

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• Clements, JF. 2007. The Clements Checklist of Birds of the World. 6th ed. Ithaca: Cornell Univ. Press. ISBN 978-0801445019

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• Del Hoyo, J, A Elliot, and J Sargatal, eds. 1992. Handbook of the Birds of the World. Volume 1: Ostrich to Ducks. Barcelona: Lynx Edicions. ISBN 978-8487334108

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• Del Hoyo, J, A Elliot, and J Sargatal, eds. 1994. Handbook of the Birds of the World. Volume 2: New World Vultures to Guineafowl. Barcelona: Lynx Edicions. ISBN 978-8487334153

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• Del Hoyo, J, A Elliot, and J Sargatal, eds. 1996. Handbook of the Birds of the World. Volume 3: Hoatzin to Auks. Barcelona: Lynx Edicions. ISBN 978-8487334207

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• Del Hoyo, J, A Elliot, and J Sargatal, eds. 1997. Handbook of the Birds of the World. Volume 4: Sandgrouse to Cuckoos. Barcelona: Lynx Edicions. ISBN 978-8487334221

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• Del Hoyo, J, A Elliot, and J Sargatal, eds. 1999. Handbook of the Birds of the World. Volume 5: Barn-Owls to Hummingbirds. Barcelona: Lynx Edicions. ISBN 978-8487334252

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• Del Hoyo, J, A Elliot, and J Sargatal, eds. 2001. Handbook of the Birds of the World. Volume 6: Mousebirds to Hornbills. Barcelona: Lynx Edicions. ISBN 978-8487334306

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• Del Hoyo, J, A Elliot, and J Sargatal, eds. 2002. Handbook of the Birds of the World. Volume 7: Jacamars to Woodpeckers. Barcelona: Lynx Edicions. ISBN 978-8487334375

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• Del Hoyo, J, A Elliot, and D Christie, eds. 2003. Handbook of the Birds of the World. Volume 8: Broadbills to Tapaculos. Barcelona: Lynx Edicions. ISBN 978-8487334504

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• Del Hoyo, J, A Elliot, and D Christie, eds. 2004. Handbook of the Birds of the World. Volume 9: Cotingas to Pipits and Wagtails. Barcelona: Lynx Edicions. ISBN 978-8487334696

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• Del Hoyo, J, A Elliot, and D Christie, eds. 2005. Handbook of the Birds of the World. Volume 10: Cuckoo-Shrikes to Thrushes. Barcelona: Lynx Edicions. ISBN 978-8487334726

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• Del Hoyo, J, A Elliot, and D Christie, eds. 2006. Handbook of the Birds of the World. Volume 11: Old World Flycatchers to Old World Warblers. Barcelona: Lynx Edicions. ISBN 978-8496553064

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• Del Hoyo, J, A Elliott, and D Christie, eds. 2007. Handbook of the Birds of the World. Volume 12: Picathartes to Tits and Chickadees. Barcelona: Lynx Edicions. ISBN 978-8496553422

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• Dickinson, EC, ed. 2003. The Howard and Moore Complete Checklist of the Birds of the World. 3rd ed., with updates to October 2008 (Corrigenda 8). Princeton: Princeton Univ. Press. ISBN 978-0691117010

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• Dickinson, EC, ed. 2003. The Howard and Moore Complete Checklist of the Birds of the World. 3rd ed., with updates to December 2007 (Corrigenda 7). Princeton: Princeton Univ. Press. ISBN 978-0691117010

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• Hockey, PAR, WRJ Dean, and PG Ryan, eds. 2005. Roberts' Birds of Southern Africa. 7th ed. Cape Town: John Voelcker Bird Book Fund. ISBN 978-0620340533

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• Sibley, DA. 2000. The Sibley Guide to Birds. New York: Alfred A. Knopf. ISBN 978-0679451228

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• Template:Ref-SinclairRyan04

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