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This is a comprehensive listing of the bird species recorded in Great Smoky Mountains National Park, which is in the U.S. states of North Carolina and Tennessee. Unless otherwise noted, this list is based on one published in May 2010 by the Great Smoky Mountains Association (GSMA) with the National Park Service (NPS). [1] The list contains 245 ...
Commercial bird food is widely available for feeding wild and domesticated birds, in the forms of both seed combinations and pellets. [9] [10]When feeding wild birds, the Royal Society for the Protection of Birds (RSPB) [11] suggests that it be done year-round, with different mixes of nutrients being offered each season.
The Pacific black duck is mainly vegetarian, feeding on seeds of aquatic plants. This diet is supplemented with small crustaceans, molluscs and aquatic insects. Food is obtained by 'dabbling', where the bird plunges its head and neck underwater and upends, raising its rear end vertically out of the water.
Greater scaup eat aquatic molluscs, plants, and insects, which they obtain by diving underwater to depths of 0.5–6 m, exceptionally 10 m. [4] They form large groups, called "rafts", that can number in the thousands. Their main threat is human development, although they are also preyed upon by owls, skunks, raccoons, foxes, coyotes, and humans.
The plant has strong roots and can survive through wide variations of the water level, slow currents and waves. It displays an affinity for high levels of phosphates and hard waters . Despite the name "duck potato", ducks rarely consume the tubers, which are usually buried too deep for them to reach, although they often eat the seeds .
The American black duck (Anas rubripes) is a large dabbling duck in the family Anatidae.It was described by William Brewster in 1902. It is the heaviest species in the genus Anas, weighing 720–1,640 g (1.59–3.62 lb) on average and measuring 54–59 cm (21–23 in) in length with an 88–95 cm (35–37 in) wingspan.
This polyculture yields both rice and ducks from the same land; the ducks eat small pest animals in the crop; they stir the water, limiting weeds, and manure the rice. Other rice polycultures in the region include rice-fish-duck and rice-fish-duck-azolla systems, where fish further manure the rice and help to control pests. [15] [16]
The Anatidae are the biological family of water birds that includes ducks, geese, and swans. The family has a cosmopolitan distribution , occurring on all the world's continents except Antarctica. These birds are adapted for swimming , floating on the water surface, and, in some cases, diving in at least shallow water.