Columbídeos (Portuguese Wikipedia)

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Tinkle, Theresa (1996). Medieval Venuses and Cupids: Sexuality, Hermeneutics, and English Poetry. Stanford, California: Stanford University Press. p. 81. ISBN 978-0804725156
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doveline.com

«New to the Hobby». National Pigeon Association. Arquivado do original em 27 de janeiro de 2012

Real facts about pigeons and public health,"The New York City Department of Health has no documented cases of communicable disease transmitted from pigeons to humans." - Dr. Manuel Vargas, New York City Department of Health.