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External anatomy of a typical bird: 1 Beak, 2 Head, 3 Iris, 4 Pupil, 5 Mantle, 6 Lesser coverts, 7 Scapulars, 8 Coverts, 9 Tertials, 10 Rump, 11 Primaries, 12 Vent, 13 Thigh, 14 Tibio-tarsal articulation, 15 Tarsus, 16 Feet, 17 Tibia, 18 Belly, 19 Flanks, 20 Breast, 21 Throat, 22 Wattle, 23 Eyestripe Topography of a typical passerine.
Because the beak is a sensitive organ with many sensory receptors, beak trimming or debeaking is "acutely painful" [41] to the birds it is performed on. It is nonetheless routinely done to intensively farmed bird species, because it helps reduce the damage the flocks inflict on themselves due to a number of stress -induced behaviours, including ...
Most species of birds have external nares located somewhere on their beak. The nares are two holes—circular, oval or slit-like in shape—which lead to the nasal cavities within the bird's skull, and thus to the rest of the respiratory system. [10] (p375) In most bird species, the nares are located in the basal third of the upper mandible.
Passerines, the "song birds". This is the largest order of birds and contains more than half of all birds. Family Acanthisittidae. Genus Acanthisitta - rifleman; Genus Xenicus - New Zealand wrens; Family Acanthizidae - scrubwrens, thornbills, and gerygones Genus Acanthiza – thornbill; Genus Acanthornis – scrubtit; Genus Aethomyias ...
The red-billed quelea is a small sparrow-like bird, approximately 12 cm (4.7 in) long and weighing 15–26 g (0.53–0.92 oz), with a heavy, cone-shaped bill, which is red (in females outside the breeding season and males) or orange to yellow (females during the breeding season).
The American bushtit, or simply bushtit (Psaltriparus minimus), is a social songbird belonging to the genus Psaltriparus.It is one of the smallest passerines in North America and it is the only species in the family Aegithalidae that is found in United States; the other seven species are found in Eurasia.
The Accipitridae (/ ˌ æ k s ɪ ˈ p ɪ t r ɪ d iː,-d eɪ /) is one of the four families within the order Accipitriformes, [2] and is a family of small to large birds of prey with strongly hooked bills and variable morphology based on diet.
Celeus is a genus of bird in the woodpecker family, Picidae, found in tropical and subtropical forests and woodlands of Central and South America. The genus contains 13 extant species. One, Kaempfer's woodpecker ( C. obrieni ), was believed to be extinct until a specimen was caught in 2006.