. Animal activities; a first book in zoo?logy. Zoology; Animal behavior. 20O /iNlM/tL ACTiyiTIES. and the jaws of a frog or fish. Noticeable, too, is the resemblance between the bill of the bird and that of the turtle. The hard toothless mandibles, however, are well fitted for the purpose of securing the insects and seeds on which most birds feed. Before man invented tweezers, the woodpeckers pried into the bark of trees and pulled out the hidden insects with their long, strong pliers. These illustrations show some of the forms the beak takes to make it a better tool for procuring the particu-
. Animal activities; a first book in zoo?logy. Zoology; Animal behavior. 20O /iNlM/tL ACTiyiTIES. and the jaws of a frog or fish. Noticeable, too, is the resemblance between the bill of the bird and that of the turtle. The hard toothless mandibles, however, are well fitted for the purpose of securing the insects and seeds on which most birds feed. Before man invented tweezers, the woodpeckers pried into the bark of trees and pulled out the hidden insects with their long, strong pliers. These illustrations show some of the forms the beak takes to make it a better tool for procuring the particu- lar kind of food on which the bird lives. In addition to its other uses the beak often serves as a hand. Birds and Insects. Insect-eating birds devour tons of destructive pests in our orchards and fields. It has been estimated that a single chickadee may destroy mpre than a hundred thousand canker-worm eggs in. Fig. 156.—The Digestive Organs of a Bird, a, cesophagus; ^, crop; C, stomach; c, gizzard. one day. Even crows feed on insects more than on corn. Hawks and owls keep in check field-mice and frogs, gulls clean the shores of decaying matter, and many of the smaller birds live on the seeds of noxious weeds. The importance of preserving bird life cannot be easily Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original French, Nathaniel Stowers, 1854-. New York [etc. etc. ] Longmans, Green and Co
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Keywords: ., bookcentury1900, bookdecade1900, booksubjecta, booksubjectzoology
