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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.
If you spot a great blue heron, here are some helpful tips for expert bird watching, and a few things you definitely should not do.
Nankeen night heron: Nycticorax caledonicus (Gmelin, JF, 1789) 29 Malayan night heron: Gorsachius melanolophus (Raffles, 1822) 30 Japanese night heron: Gorsachius goisagi (Temminck, 1836) 31 Capped heron: Pilherodius pileatus (Boddaert, 1783) 32 Whistling heron: Syrigma sibilatrix (Temminck, 1824) 33 Little blue heron: Egretta caerulea ...
English: Little blue heron, Egretta caerulea<r /> Little blue heron displaying her footwork. Bright sunlight is washing out her deep blue color a bit. The green of the water is the reflection of the mangrove trees. North Palm Beach, Florida.
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.
The genus name comes from the Latin word ardea meaning "heron". [2] The type species was designated as the grey heron (Ardea cinerea) by George Robert Gray in 1840. [3] Some members of Ardea are clearly very closely related, such as the grey, great blue, and cocoi herons, which form a superspecies.
Herons are various species of birds within the bird family Ardeidae. They are members of differing genera and are grouped here for simplicity only. Subcategories
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