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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.
A mineral lick (also known as a salt lick) is a place where animals can go to lick essential mineral nutrients from a deposit of salts and other minerals. Mineral licks can be naturally occurring or artificial (such as blocks of salt that farmers place in pastures for livestock to lick).
Pellets are small spherical to ovoid or rod-shaped grains that are common component of many limestones. They are typically 0.03 to 0.3 mm long and composed of carbonate mud ( micrite ). Their most common size is 0.04 to 0.08 mm. Pellets typically lack any internal structure and are remarkably uniform in size and shape in any single limestone ...
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.
Cabinets at the Museum of Comparative Zoology, Harvard University. Bird collections are curated repositories of scientific specimens consisting of birds and their parts. They are a research resource for ornithology, the science of birds, and for other scientific disciplines in which information about birds is useful.
W. H. Mullens, in a 1908 issue of British Birds, argued that despite the contributions of Thomas Pennant, of Gilbert White's Natural History of Selborne (1789), and Thomas Bewick's fine wood engravings in A History of British Birds (1797–1804), ornithology had not made much progress since the seventeenth century. [19] Instead,
In 2018, the American Ornithology Society announced a partnership with Oxford University Press to publish The Condor: Ornithological Applications and The Auk: Ornithological Advances. [ 3 ] In January 2021, The Condor was renamed as Ornithological Applications to make the title more descriptive and clarify its thematic focus and citation. [ 4 ]
Pellets (a type of peloid) and a brachiopod shell visible in a limestone thin-section; Bird Spring Formation (Carboniferous) of southern Nevada. Peloids are allochems that are composed of micrite, irrespective of size, shape, or origin. The two primary types of peloids are pellets and intraclasts. Another type of peloid is pseudo-oolith. [1] [2 ...