Radiology of Birds: an atlas of normal anatomy and positioning / by 
Birds : evolution and behavior, breeding strategies, migration and spread of disease by 
The Welfare of Domestic Fowl and Other Captive Birds by 
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The avian erythrocyte [electronic resource] : its phylogenetic odyssey by 
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Phenological synchrony and bird migration [electronic resource] : changing climate and seasonal resources in North America by 
