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A pellet, in ornithology, is the mass of undigested parts of a bird's food that some bird species occasionally regurgitate. The contents of a bird's pellet depend on its diet, but can include the exoskeletons of insects, indigestible plant matter, bones, fur, feathers, bills, claws, and teeth. In falconry, the pellet is called a casting.
Pellet (ornithology), regurgitated by birds; Pellets (petrology), a carbonate sedimentary structure in limestone; Pellet (steel industry), a processed form of iron ore; Pellet fuel, mostly as wood pellets used as biofuel; Pellet (software), an OWL semantic reasoner; Pellet stove, to burn compressed wood or biomass pellets
Farmed birds that are fed with commercial bird food are typically given a pre-blended feed consisting largely of grain, protein, mineral, and vitamin supplements. Examples of commercial bird food for chickens include chick starter medicated crumbles, chick grower crumbles, egg layer mash, egg layer pellet, egg layer crumbles, egg producer pellets, and boiler maker med crumbles. [12]
Ornithology is a branch of zoology that concerns the study of birds. [1] Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. [2] It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support.
The Chocó screech owl's breeding season appears to be January to March, based on the one nest that has been found and the collection of a female with a partially formed egg. The nest was in a natural cavity in the trunk of a dead tree. The bottom of the cavity contained bark, wood dust, dry leaves, pellets, remains of prey, and eggshell fragments.
The bearded screech owl was first described by Philip Sclater and Osbert Salvin in 1868. It shares genus Megascops with more than 20 other screech owls. It is monotypic. [3] The specific epithet barbarus is derived from the type locality of Santa Bárbara, Vera Paz, Guatemala, and "bearded" is apparently a errant derivation of it (bearded would be barbatus).
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Like many bird species, the chimney swift periodically coughs up pellets composed of indigestible bits of prey items. [ 46 ] During the breeding season, at least half of the chimney swift's forays occur within 0.5 km (0.3 mi) of its nest; however, it ranges up to 6 km (3.7 mi) away. [ 47 ]