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Great Blue Heron

Ardea herodias

Description:

It is the largest North American heron and, among all extant herons, it is surpassed only by the Goliath Heron and the White-bellied Heron. It has head-to-tail length of 91–137 cm (36–54 in), a wingspan of 167–201 cm (66–79 in), a height of 115–138 cm (45–54 in), and a weight of 2.1–3.6 kg (4.6–7.9 lb). Notable features include slaty flight feathers, red-brown thighs, and a paired red-brown and black stripe up the flanks; the neck is rusty-gray, with black and white streaking down the front; the head is paler, with a nearly white face, and a pair of black plumes running from just above the eye to the back of the head. The feathers on the lower neck are long and plume-like; it also has plumes on the lower back at the start of the breeding season. The bill is dull yellowish, becoming orange briefly at the start of the breeding season, and the lower legs gray, also becoming orangey at the start of the breeding season. Immature birds are duller in color, with a dull blackish-gray crown, and the flank pattern only weakly defined; they have no plumes, and the bill is dull gray-yellow. Among standard measurements, the wing chord is 43–48 cm (17–19 in), the tail is 15.2–19 cm (6.0–7.5 in), the culmen is 13.1–15.2 cm (5.2–6.0 in) and the tarsus is 15.7–21 cm (6.2–8.3 in). The heron stride is around 22 cm (9 in), almost in a straight line. Two of the three front toes are generally closer together. In a track the front toes as well as the back often show the small talons. The subspecies differ only slightly in size and plumage tone, with the exception of subspecies occidentalis, which as well as normal colored birds, also has a distinct white morph, known as the Great White Heron (not to be confused with the Great Egret, for which "Great White Heron" was once a common name). It is found only in south Florida and some parts of the Caribbean. The Great White Heron differs from other Great Blues in bill morphology, head plume length, and in having a total lack of pigment in its plumage. This is mainly found near salt water, and was long thought to be a separate species. Birds intermediate between the normal morph and the white morph are known as Würdemann's Heron; these birds resemble a "normal" Great Blue with a white head. The theory that Great White Heron may be a separate species (A. occidentalis) from Great Blue Heron has again been given some support by David Sibley.

Habitat:

The Great Blue Heron is found throughout most of North America, as far north as Alaska and the southern Canadian provinces. The range extends south through Florida, Mexico and the Caribbean to South America. Birds east of the Rocky Mountains in the northern part of their range are migratory and winter in Central America or northern South America. From the southern United States southwards, and on the Pacific coast, they are year-round residents. However their hardiness is such that individuals often remain through cold northern winters, as well. It can be found in a range of habitats, in fresh and saltwater marshes, mangrove swamps, flooded meadows, lake edges, or shorelines, but always close to bodies of water, usually nesting in trees or bushes. It has been recorded as a vagrant in England, Greenland, Hawaii, and the Azores.

Notes:

...this feeding ritual lasted over 10 minutes...or 200+ frames LOL... I observed an interesting behavior with this bird. between the jabbing sessions and poking the fish with no mercy... the GBH would gently wash the fish before attempting to swallow it down.

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11 Comments

Ava T-B
Ava T-B 7 years ago

Oh Marcel, I use Wiki all the time. I know some people really don't like that, but I'm also not a biologist and I have to call on other sources. I think maybe the isse is habitat; wanting to know where the spotter saw the organixm rather than just where it generally shows up.
Please don't lose heart; your spottings are lovely.

MarcelPepin
MarcelPepin 7 years ago

Ava T-B... sorry real life has been going in overtime... too busy... and to be real honest... I have done 2 postings today and was pooped on by a Noah Ranger... just because I used Wiki for description and habitat.

I explained that im a carpenter and photographer... not a biologist. if they make it too hard for me to post, I just wont ;)

Ava T-B
Ava T-B 7 years ago

MarcelPepin, It's been a long time since you last posted here at Project Noah. We hope you have more spottings to share!

YukoChartraw
YukoChartraw 8 years ago

Wow! Superb series!!! Although a little bloody, I love the pic #4 the most. Beautiful capture!

Ava T-B
Ava T-B 8 years ago

Marcel, "my" mission is Nests, hives, bowers..., but I like the Hunters mission too. I'd be glad if you joined Nests too because your pictures are so clear and lovely.

MarcelPepin
MarcelPepin 8 years ago

Thank you Alice, nice seeing you again : )

MarcelPepin
MarcelPepin 8 years ago

Ava T-B... Done!... I am now in your mission ; )

MarcelPepin
MarcelPepin 8 years ago

thank you Nuwan : )

alicelongmartin
alicelongmartin 8 years ago

Looks like a big meal! Nice Series!

Ava T-B
Ava T-B 8 years ago

This spotting could go in the Hunters and Animal Feeding Behavior mission at http://www.projectnoah.org/missions/8463... Since these aren't flight pictures, you could switch this in and switch out the Global Flight.

NuwanChathuranga
NuwanChathuranga 8 years ago

grat shots and good description !

MarcelPepin
Spotted by
MarcelPepin

West Vancouver, British Columbia, Canada

Spotted on Aug 9, 2012
Submitted on Sep 5, 2012

Reference

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