For the history of the classification of birds see the article Ornithology, where also the more important ornithological works are mentioned. [Please select]
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His ornithological knowledge went no further than to the birds of Bengal; and the toucan is found only in America. [Please select]
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Their numbers during the periods of migration was one of the greatest ornithological wonders of the world. [Please select]
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Forty-two of these birds only are preserved in the ornithological collections of the whole world. [Please select]
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With the limited means at its command the work of ornithological exploration was carried forward. [Please select]
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Professor Johnston also made available data on the breeding of the Bell Vireo from the files of the Kansas Ornithological Society. [Please select]
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Even the cattle appeared to regard the youth as a sort of ornithological curiosity, for the sentiment, "Well, you are a goose." [Please select]
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