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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.
Birds feature in the flag designs of 17 countries and numerous subnational entities and territories. [325] Birds are used by nations to symbolise a country's identity and heritage, with 91 countries officially recognising a national bird. Birds of prey are highly represented, though some nations have chosen other species of birds with parrots ...
Bird ringing is the term used in the UK and in some other parts of Europe, while the term bird banding is more often used in the U.S. and Australia. [49] bird strike The impact of a bird or birds with an airplane in flight. [50] body down The layer of small, fluffy down feathers that lie underneath the outer contour feathers on a bird's body. [51]
The chestnut-breasted malkoha is typical of the Phaenicophaeinae in having brightly coloured skin around the eye.. Cuckoos are medium-sized birds that range in size from the little bronze cuckoo, at 17 g (0.6 oz) and 15 cm (6 in), to moderately large birds, ranging from 60–80 cm (24–31 in) in length, such as the giant coua of Madagascar, the coral-billed ground-cuckoo of Indochina, and ...
Description. Like many other galliforms, grouse are generally heavily-built birds. The traditional grouse (excluding turkeys) range in length from 31 to 95 cm (12 to 371⁄2 in), and in weight from 0.3 to 6.5 kg (3⁄4 to 141⁄4 lb). If they are included, wild turkey toms are the largest grouse species, attaining lengths of 130 cm (50 in) and ...
Falconry was once called "hawking", and any bird used for falconry could be referred to as a hawk. [4]Aristotle listed eleven types of ἱέρακες (hierakes, hawks; singular ἱέραξ, hierax): aisalōn (merlin), asterias, hypotriorchēs, kirkos, leios, perkos, phassophonos, phrynologos, pternis, spizias, and triorchēs.
Species distribution, or species dispersion, [1] is the manner in which a biological taxon is spatially arranged. [2] The geographic limits of a particular taxon's distribution is its range, often represented as shaded areas on a map. Patterns of distribution change depending on the scale at which they are viewed, from the arrangement of ...
Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Migration is inherently risky, due to predation and mortality. The Arctic tern holds the long-distance migration record for birds, travelling between Arctic breeding grounds ...