لماذا تحتاج الطيور التي لاتطير مثل النعامة إلى الريش؟. Bird Feathers

"The genetics of inbreeding depression"	San Diego : Academic Press, 2000
Species Taxa of North American Birds: A Contribution to Comparative Systematics	Birding in the United States: a demographic and economic analysis

New Haven: Yale University Press.

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ريش (تشريح): They are also good when hard boiled, and it takes more than an hour to cook them properly for this sort of service
ريش (تشريح): Blackburn, T; Cassey, P; Duncan, R; Evans, K; Gaston, K 2004
ريش (تشريح): Baltimore: Johns Hopkins University Press

Volume 2; New World Vultures to Guineafow	"Producing song: the vocal apparatus"
de Beer SJ, Lockwood GM, Raijmakers JHFS, Raijmakers JMH, Scott WA, Oschadleus HD, Underhill LG 2001	"Inbreeding causes early death in a passerine bird"

In and Kevin Padian eds.

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اشهر 10 طيور لا تطير بالصور: "The role of hyperthermia in the water economy of desert birds"
لماذا تحتاج الطيور التي لا تطير مثل النعامة الى الريش: "The Breeding Biology of the House Sparrow Passer domesticus in Israel"
اشهر 10 طيور لا تطير بالصور: in press 7454 : 359—62