Great Blue Heron – Grand Héron
The Great Blue Heron (Ardea herodias) is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North and Central America as well as the West Indies and the Galápagos Islands. It is a rare vagrant to Europe, with records from Spain, the Azores and England. An all-white population found only in the Caribbean and south Florida was once known as a separate species, the Great White Heron.
The largest North American heron, with a head-to-tail length of 91–140 cm (36-55 in), a wingspan of 167-201 cm (66-79 in), and a weight of 2–3.6 kg (4.4-8 lbs),flight feather]]s, 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.
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.
Le Grand Héron (Ardea herodias) est une espèce d’oiseau de la famille des ardéidés (hérons et butors).
C’est un oiseau commun dans la plus grande partie de l’Amérique centrale et du nord ainsi que dans les îles des Caraïbes et Galapagos, à l’exception du grand nord américain ou des régions désertiques ou montagneuses dans lesquelles il ne pourrait pas trouver d’étendues d’eau pour se nourrir.
C’est le plus grand des hérons américains. Il mesure environ 1,20 m de haut et entre 1,08 et 1,32 m de long. Son poids oscille autour de 2,6 kg, la femelle étant légèrement moins lourde. Son envergure totale atteint entre 1,83 et 2,13 m.
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Keywords: Birds, California, Canada, Discover, Montreal, Montreal Nature Park, Montreal Urban Nature, National Geographic, Nature, North America, Parc de L'Ile de la Visitation, Photo, Quebec, United States of America, Urban Nature, animal, Animal Planet, avian, big, Bird, boulders, current, eco, ecology, ecosystem, environment, Europe, fauna, forest, Grand Héron, Great Blue Heron, heron, Italy, large, Long Beach, Los Angeles, milano, nat geo, natgeo, nature, ornithology, park, photographe, photographer, picture, prfessional, pro, rapids, River, rocks, shore, stefano, steve, steve troletti, trees, troletti, trolettiphoto.com, United States of America - USA, varese, wilderness, Wildlife
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