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Old 02-19-2011, 08:48 PM   #1
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Join Date: Aug 2009
Location: Chesterfield, Virginia
mallard Branta species - Canada geese

Spring is creeping northward across the continent, and the geese will be following. I had two small flocks pass over yesterday, one going north and the other south. Maybe they were testing their GPS?

Canada Goose - BirdWeb

Canada geese are another instance of the law of unintended consequences:
Quote:
However, as populations of Canada Geese in eastern Washington and across the rest of the country dwindled due to habitat loss and over-hunting, changes in Seattle's urban landscape (grassy yards, golf courses and parks replacing tall trees and dense shoreline under-story) provided perfect goose breeding habitat. In order to bolster populations and expand their range, Canada Geese were introduced into western Washington from the Columbia River basin. With few natural predators, prime habitat, and an ample food supply, the geese not only thrived, but abandoned their migratory behavior and became year-round residents. Very high survival rates (90% for urban birds as compared with 60% for wild birds, whose main cause of mortality is hunting) and enhanced fecundity among urban Canada Geese has further fueled their population growth in the Seattle region and in other cities nationwide.
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