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Canvasback duck diving In the early 1950s it was estimated that there were 225,000 canvasbacks wintering in the Chesapeake Bay ; this represented one-half of the entire North American population. By 1985, there were only 50,000 ducks wintering there, or one-tenth of the population.
Aythya is a genus of diving ducks, with twelve species currently accepted. [2] The genus was described in 1822 by the German zoologist Friedrich Boie, with the type species being greater scaup. [3] [4] The name Aythya comes from the Ancient Greek word αἴθυιᾰ (aithuia), which referred to an unknown diving-bird. [5] [6]
The species name is the Latin word ferina, meaning "wild game" (derived from ferus, meaning "wild"). [10] The common name "pochard" was first applied to the duck in the mid-1500s; its origin and etymology is unknown. [11] It is also sometimes known as European pochard, Eurasian pochard, or (particularly in the UK) simply pochard. [12]
The diving ducks, commonly called pochards or scaups, are a category of duck which feed by diving beneath the surface of the water. They are part of Anatidae, the diverse and very large family that includes ducks, geese, and swans. The diving ducks are placed in a distinct tribe in the subfamily Anatinae, the Aythyini.
Pochard is a common name used for several species of diving ducks: Four species in the genus Aythya: Common pochard, Aythya ferina; Baer's pochard, Aythya baeri; Ferruginous pochard, Aythya nyroca; Madagascar pochard, Aythya innotata; Three species in the genus Netta: Red-crested pochard, Netta rufina; Rosy-billed pochard or Rosybill, Netta ...
Many species of ducks and geese share the same habitat and have overlapping hunting seasons. [10] In North America a variety of ducks and geese are hunted, the most common being mallards, Canada goose, snow goose, canvasback, redhead, northern pintail, gadwall, ruddy duck, coots, common merganser and red-breasted merganser. [11]
The rosy-billed pochard (Netta peposaca), alternatively named rosybill or rosybill pochard, is a member of family Anatidae.Though classified as a diving duck, this pochard feeds more like a dabbling duck feeding on seeds roots, sedges, aquatic plants and other grasses.
The redhead is a pochard, a diving duck specially adapted to foraging underwater. Their legs are placed further back on the body, which makes walking on land difficult. The webbing on their feet is larger than dabbling ducks and their bills are broader to facilitate underwater foraging.