Most interesting in a Flickr search for "My favorite position for cleaning myself Canard colvert Mallard":
"My favorite position for cleaning myself !Canard colvert=Mallard)"
by Mclaire2 of flickr
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Description:
Canard colvert(Anas platyrhynchos )Ce canard vit dans les zones humides d'eau douce, que ce soit dans les marais, les étangs et les lacs ou les rivières calmes, dans toutes les régions tempérées et subtropicales d'Amérique du Nord, d'Europe, d'Asie, de la Nouvelle-Zélande, et d'Australie, du niveau de la mer jusqu'à 2000 mètres d'altitude. Il vit sur l'eau, et ne va sur la terre ferme que pour la nidification et le repos.Le terme scientifique platyrhynchos issue du latin signifie bec plat.
pagesperso-orange.fr/peche.pbleepions.picardie/Son/Sons%20O...
Mallard (Anas platyrhynchos) is the ancestor of almost all of the varieties of domestic ducks. The Mallard is a rare example of both Allen's Rule and Bergmann's Rule in birds. Bergmann's Rule, which states that polar forms tend to be larger than related ones from warmer climates, has numerous examples in birds. Allen's Rule says that appendages like ears tend to be smaller in polar forms to minimize heat loss, and larger in tropical and desert equivalents to facilitate heat diffusion, and that the polar taxa are stockier overall. Examples of this rule in birds are rare, as they lack external ears. However, the bill of ducks is very well supplied with blood vessels and is vulnerable to cold.
