Desert tawny owl (Strix aluco) is a different species from Hume's owl H Shirihai, Photographic Handbook of the Birds of the World An international group of ornithologists has discovered that a species ...
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IN a paper published in 1934, F. L. Vanderplank 1 records certain observations which are interpreted as showing that the tawny owl, Strix aluco L., is able to perceive infra-red rays visually, and ...
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