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The canvasback is particularly vulnerable to drought and wetland drainage on the prairies of North America. [8] Many species of ducks, including the canvasback, are highly migratory, but are effectively conserved by protecting the places where they nest, even though they may be hunted away from their breeding grounds. [1]
The species are plump, compact, medium-sized ducks ranging from 37–61 cm long, 60–84 cm wingspan, and weighing 410–1600 g, with canvasback the largest, and ring-necked duck and ferruginous duck marginally the smallest.
The redhead and the common pochard form a sister group which together is sister to the canvasback. [5] This waterfowl is easily distinguished from most other ducks by the male's copper colored head and pale blue bill during the breeding season; [6] from its close relative canvasback it is distinguished by the more rounded head, shorter bill ...
The avian family Anatidae, commonly called waterfowl, comprise the ducks, geese, and swans. The International Ornithological Committee (IOC) recognizes these 174 Anatidae species distributed among 53 genera, 32 of which have only one species. Eight species on the list are extinct; they are marked (E). [1]
This is a list of the bird species recorded in the Bahamas. The avifauna of the Bahamas include a total of 386 species, according to Bird Checklists of the World (Avibase) as of July 2023. [ 1 ] Of them, seven are endemic , 21 have been introduced by humans, and 212 are rare or accidental .
This is a list of the breeds of domestic duck which have official recognition at national or international level. [1]Most breeds of duck derive from the wild mallard, Anas platyrhynchos, while a small minority are descendants of the Muscovy duck, Cairina moschata.
To identify or designate someone/something. 2. Phases of an aerial journey. 3. To search for something. 4. These words can be found on a map (if you add a letter to the beginning).
This group of ducks is so named because its members feed mainly by diving, although in fact the Netta species are reluctant to dive, and feed more like dabbling ducks. These are gregarious ducks, mainly found on fresh water or on estuaries, though the greater scaup becomes marine during the northern winter. They are strong fliers; their broad ...