Birds Are Interesting
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Duration:
Year Published: 1950
Creator: ?Encyclopedia Britannica ebec
Complete Record: Presents some basic biological concepts concerning birds. Provides a systematic analysis of birds by classifying them under three categories - swimming and wading birds, birds of prey, and perching birds. Contrasts such features as bills, feet, and wings to characterize each type. Birds depicted include hawks, owls, ducks, pelicans, canaries, and domestic chickens. Classification of birds, evolutionary variations in feet, bill and wing structure for purposes of adaptation. Discusses migration among birds, speculates upon its cause, and compares routes and distances of various species.
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Original permalink · Record added: 2024-09-07 23:40:01