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In Nova Scotia and New England, adult herons of both sexes averaged 2.23 kg (4.9 lb), [12] while in Oregon, both sexes averaged 2.09 kg (4.6 lb) [13] Thus, great blue herons are roughly twice as heavy as great egrets (Ardea alba), although only slightly taller than them, but they weigh only about half as much as a large goliath heron.
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The feathers of the herons are soft and the plumage is usually blue, black, brown, grey, or white, and can often be strikingly complex. Amongst the day herons, little sexual dimorphism in plumage is seen (except in the pond-herons); however, for the night herons and smaller bitterns, plumage differences between the sexes are the rule.
Great Blue Herons are among the largest birds in North America. With a wingspan that can reach over 2m (6.5 feet), only eagles and swans are larger. They are a beautiful sight to see, most ...
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The great blue heron is the largest heron native to North America. Its range is very wide, spreading from norther Canada to South America depending on the time of year, and encompassing almost all ...