The Canadian Breeding Bird Survey, 1966-1994 PDF Download
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Author: C. M. Downes
Publisher: Canadian Wildlife Service
ISBN: 9780662246244
Category : Bird populations
Languages : en
Pages : 36
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Book Description
Author: C. M. Downes
Publisher: Canadian Wildlife Service
ISBN: 9780662246244
Category : Bird populations
Languages : en
Pages : 36
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Book Description
Author: Anthony J. Erskine
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Wayne Campbell
Publisher: UBC Press
ISBN: 9780774806213
Category : Nature
Languages : en
Pages : 768
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Book Description
This much-awaited final volume of The Birds of British Columbia completes what some have called one of the most important regional ornithological works in North America. It is the culmination of more than 25 years of effort by the authors who, with the assistance of thousands of dedicated volunteers throughout the province, have created the basic reference work on the avifauna of British Columbia. Volume 4 covers the last half of the passerines and describes 102 species, including the warblers, sparrows, grosbeaks, blackbirds, and finches. The text builds upon the authoritative format of the previous volumes and is supported by hundreds of full-colour illustrations, including detailed distribution maps, unique habitat shots, and beautiful photographs of the birds, their nests, eggs, and young. In addition, a species update lists and describes 27 species of birds new to the province since the first three volumes were published. The book concludes with Synopsis: The Birds of British Columbia into the 21st Century, which synthesizes data and information from all four volumes and looks at the conservation challenges facing birds in the new millennium. The four volumes in The Birds of British Columbia provide unprecedented coverage of the region's birds, presenting a wealth of information on the ornithological history, regional environment, habitat, breeding habits, migratory movements, seasonality and distribution patterns of 472 species of birds. It is the complete reference work for birdwatchers, ornithologists and naturalists.
Author: B. T. Collins
Publisher:
ISBN: 9780662172772
Category : Bird populations
Languages : en
Pages : 81
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Book Description
Author: Canadian Wildlife Service
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 48
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Book Description
Author: Chandler S. Robbins
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 43
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Book Description
Author: Robert William Butler
Publisher: UBC Press
ISBN: 9780774806343
Category : Nature
Languages : en
Pages : 206
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Book Description
With its striking plumage, the great blue heron is one of the most widely recognized wading birds in North America. Riding on kelp beds in the Queen Charlotte Islands, wading in coastal streams along the mainland, poised motionless at the water's edge on a misty morning, or nesting in the limbs of old-growth forests, this stately bird is a familiar sight on the coast of British Columbia. The largest colonies are on the Fraser River delta, an area of great ecological significance to the north Pacific. Despite a growing body of knowledge regarding many aspects of the species' breeding biology and courtship behaviour, the foraging and population ecology of this bird remains something of an enigma. In his beautifully illustrated book, Robert Butler follows the great blue heron through a year on the coast of British Columbia. He draws on more than a decade of work to throw light on the adaptability of this magnificent bird to a temperate climate, its diet and breeding habits, habitat use, and conservation. Although the great blue heron has become a symbol of wetland conservation, in recent years it has had to face new challenges as a consequence of rapid urbanization of its environment. In The Great Blue Heron the author also describes the B.C. coast and shares a vision for the conservation of the Strait of Georgia and the Fraser River delta.
Author: A. W. Diamond
Publisher: Fredericton, NB : The Society
ISBN:
Category : Birds
Languages : en
Pages : 160
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
Reports on the first four years of a co-operative attempt to detect and measure year-to-year changes in numbers of birds, chiefly songbirds, across Canada. Includes description of data collection and year-to-year comparison methods used. Results presented includes number and coverage of bird survey routes, mean number per route of the 20 species recorded in the greatest numbers, population indices 1966-69 for eight major species, changes in bird population indices for comparable survey routes, and annual indices of bird populations in the Maritimes.
