Zöology; a textbook for colleges and universities . humming birds, peckers 392 ZOOLOGY Perchingbirds;sparrowsand theirrelatives swifts, trogons, toucans, and are mainly arboreal, and the young areborn blind and helpless. There are over 550species of humming birds known, exclusivelyconfined to the New World. In the OldWorld tropics their place is taken to someextent by the sun birds, which are, however,Passeriformes, with no real relationship to thehumming birds. The fairy humming bird ofCuba is the smallest bird known, being only2| inches long. The swifts, though resemblingthe
Zöology; a textbook for colleges and universities . humming birds, peckers 392 ZOOLOGY Perchingbirds;sparrowsand theirrelatives swifts, trogons, toucans, and are mainly arboreal, and the young areborn blind and helpless. There are over 550species of humming birds known, exclusivelyconfined to the New World. In the OldWorld tropics their place is taken to someextent by the sun birds, which are, however,Passeriformes, with no real relationship to thehumming birds. The fairy humming bird ofCuba is the smallest bird known, being only2| inches long. The swifts, though resemblingthe swallows, are not at all closely related to£nem; the swallows are Passeriformes, and arestructurally nearer to the sparrows than to theswifts. Passeriformes. The largest and highest group,which is among the birds what the Compositseare among the plants. Wonderfully successfulin the struggle for existence, presenting in-numerable families and genera adapted todifferent modes of life, feeding on almost everykind of animal and vegetable matter, but. From Animate Creation FIG. 165. A group of finches. BIRDS 393
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1920
