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A wing-clipped Meyer's parrot perching on a drawer handle. While clipping is endorsed by some avian veterinarians, others oppose it. [7]By restricting flight, wing clipping may help prevent indoor birds from risking injury from ceiling fans or flying into large windows, but no evidence shows that clipped birds are safer than full-winged ones, only that clipped birds are subject to different ...
The anhinga is a large bird, measuring approximately 89 cm (35 in) in length (with a range of 75–95 cm (30–37 in)), with a 1.14 m (3.7 ft) wingspan. [ 10 ] [ 11 ] The A. a. anhinga subspecies is larger than A. a. leucogaster and has broader buffy tail tips. [ 5 ]
Further research in 2020 by Auersperg's team compared the problem-solving ability of the captive-bred Goffins at the Goffin Lab with wild birds caught in Tanimbar and exposed to the same experimental conditions – in which the birds were placed in an "innovation arena" and presented a series of 20 different tasks (e.g. pressing a button ...
An adult bird which has been beak-trimmed as a chick. Beak trimming (also spelled as beak-trimming; informally as debeaking), or beak conditioning, is the partial removal of the beak of poultry, especially layer hens and turkeys, although it is also be performed on some quail and ducks. When multiple birds are confined in small spaces due to ...
The word is, more broadly, used as a pejorative [1] catch-all term for experimentation on live animals [2] [3] [4] by organizations opposed to animal experimentation, [5] but the term is rarely used by practising scientists. [3] [6] Human vivisection, such as live organ harvesting, has been perpetrated as a form of torture. [7] [8]
Aquatic locomotion. A great cormorant swimming. Aquatic locomotion or swimming is biologically propelled motion through a liquid medium. The simplest propulsive systems are composed of cilia and flagella. Swimming has evolved a number of times in a range of organisms including arthropods, fish, molluscs, amphibians, reptiles, birds, and mammals.
The Peterson Field Guides (PFG) are a popular and influential series of American field guides intended to assist the layman in identification of birds, plants, insects and other natural phenomena. The series was created and edited by renowned ornithologist Roger Tory Peterson (1908–1996). His inaugural volume was the classic 1934 book A Field ...
There is an intricate link between various fishing techniques and knowledge about the fish and their behaviour including migration, foraging and habitat. The effective use of fishing techniques often depends on this additional knowledge. [1] Which techniques are appropriate is dictated mainly by the target species and by its habitat. [2]