The Birds of Wyoming; With an Explanation of Recent Changes in Their Distribution Economic Aspect Also Considered

The Birds of Wyoming; With an Explanation of Recent Changes in Their Distribution Economic Aspect Also Considered

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: only Blackwelder, Walker, and Clearwaters have noted it. 615. Tachycineta thalassina lepida: Northern Violet-green Swallow. Abundant summer resident from the foothills to timber line in many portions of the state. 616. Riparia riparia: Bank Swallow. Abundant summer resident over most of the state. 617. Stelgidopteryx serripennis: Rough-winged Swallow. Knight said that it is probably a summer resident, but that the data was insufficient to mark its occurrence in Wyoming. Blackwelder has since recorded it from the Teton region. This is the only recent record. It is probable that many are recorded under the preceding form which should properly be placed under serripennis. BOMBYCILLIDAE (Waxwings). The Waxwings are fond of wild and cultivated fruits of various kinds. They are sometimes a nuisance in cherry trees. The young are fed mostly on insects and their larvae, and the adults are great insect destroyers. When a Hock of these birds enters an orchard infested by canker worms, they are likely to rid it of these pests. Elm trees are also protected from elm leaf beetles. The Waxwings feed upon a variety of insects and they are great gluttons, stuffing on fruit Of insects until they can swallow no more. They are on the whole beneficial and deserve protection. RKFKRENCES: 1. North American Fauna 19. p. 89. 2. "Useful Birds and Their Protection," Forebush. pp. 21)9-211. 618. Bombycilla garrula: Bohemian Waxwing. Knight reported that it was a winter resident and local abundant. Richard now reports that they are common residents in the mountains, which would indicate that they breed there. Metz, Peabody, and Percival also report it. 619. Bombycilla cedrorum: Cedar Waxwing. Common resident in portions of the state. Met?, Blackwelder, more

Product details

  • Paperback | 40 pages
  • 189 x 246 x 2mm | 91g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236653378
  • 9781236653376