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Common Gull, Larus canus  

En. Common Gull, Da. Stormmåge, Du. Stormmeeuw, Fi. Kalalokki, Fr. Goéland cendré,
Ge. Sturmmöwe, It. Gavina, No. Fiskemåke, Sp. Gaviota cana, Sw. Fiskmås

© http://www.ecosystema.ru/

© Arthur Grosset
The Common Gull or Mew Gull, Larus canus is a medium-sized gull which breeds in northern Asia,
northern Europe and northwestern North America. It
migrates further south in winter.

Adults are 40-46 cm long, obviously smaller than the Herring Gull, also differing from this in its shorter,
more tapered bill with a more greenish shade of yellow, as well as being unmarked during the breeding season.
It has a smaller head than Herring Gull and looks "friendlier".
It is slightly larger than Black-headed Gull, Larus ridibundus.

The body is grey above and white below. The legs are greenish-yellow.
In winter, the head is streaked grey, and the bill often has a poorly-defined blackish band near the tip.
They have black wingtips with large white "mirrors".

There are four subspecies, two of them considered distinct species by some authorities:

Larus canus canus Common Gull. Europe and western Asia. palest subspecies, weight 290-480 g.
Larus canus heinei Central northern Asia. darkest subspecies, weight 315-550 g.
Larus canus kamtschatschensis Kamchatka Gull Northeastern Asia. Weight 394-586 g.
Larus canus brachyrhynchus Mew Gull , Short-billed Gull Alaska and western Canada. Weight 320-550 g.


© www.ecosystema.ru/
Both Common and Mew Gulls breed colonially near water or in marshes,
making a lined nest on the ground or in a small tree; colony size varies from two to 320 or more pairs.
Usually three eggs are laid (sometimes just one or two); they hatch after 24-26 days,
with the chicks fledging after a further 30-35 days.

© www.ecosystema.ru/

Like most gulls, they are omnivores and will scavenge as well as hunt small prey.
The global population is estimated to be about one million pairs; they are most numerous in Europe,
with over half (possibly as much as 80-90%) of the world population.
By contrast, the Alaskan population is only about 10,000 pairs.

© Arthur Grosset
This photo is probably a second summer bird showing a yellowish-grey bill with a black tip.
Young birds have scaly black-brown upperparts and a neat wing pattern, and grey legs.
They take two to three years to reach maturity.

text: http://en.wikipedia.org


over 250


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