Identifier: birditsformfunct07beeb (find matches)
Title: The bird, its form and function
Year: 1906 (1900s)
Authors: Beebe, William, 1877-1962
Subjects: Birds Birds
Publisher: New York : Henry Holt
Contributing Library: Internet Archive
Digitizing Sponsor: Internet Archive

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Fig. 152.—Duck Hawk. (Courtesy of N. Y. Zoological Society.)Compare the alert expression with the sloth in Fig. 151. Birds have well-developed lachrymal glands, althoughit is seldom that they actually shed tears. Still I haveseen a flamingo in a flying-cage weeping copiously fromterror, anticipating all sorts of torture from a harmless 212 The Bird condor which was playfully galloping around the fright-ened bird. Millions of years ago, in the geological period of timeknown as the Jurassic, there existed gigantic sea-lizards,which we call Ichthyosauri. All we know of them wehave learned by study of their fossil bones which, throughthe ages, have been preserved in rocks. One notable
Text Appearing After Image:
Fig. 153.—Brown Thrasher with eyes wide open. thing about them was the great size of their eyes—meas-uring as much as twelve and fourteen inches across.These orbits were surrounded by a series of bony plates,and in certain birds of to-day we find a similar circle ofsmall overlapping bones. To make the simile between a camera and an eye holdgood, we must show that the latter is provided with a The Senses 213

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