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The Bird Body. Characteristics of Birds All birds are members of the class Aves Birds have retained some reptilian characteristics – Amniotic eggs – Feet.
Class Aves: Birds. Evolved from small, carnivorous dinosaurs about 150 million years ago. Oldest known bird fossils belong to the species named Archaeopteryx.
What is a bird? bird (bûrd) n. –Any of the class Aves of warm- blooded, egg-laying, feathered vertebrates with forelimbs modified to form wings. –Such.
Lizards, PowerPoint 1
Wind Engineering Societal and Environmental Factors Module 7.1 Avian Issues
The Bird Body
