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Bird measurement or bird biometrics are approaches to quantify the size of birds in scientific studies. The variation in dimensions and weights across birds is one of the fundamental sources of diversity among birds, and even Within species, dimensions may vary across populations within species, between the sexes and depending on age and ...
The cockatoos are generally medium to large parrots of stocky build, which range from 30–60 cm (12–24 in) in length and 300–1,200 g (0.66–2.65 lb) in weight; however, one species, the cockatiel, is considerably smaller and slimmer than the other species, being 32 cm (13 in) long (including its long pointed tail feathers) and 80–100 g ...
The long-tailed parakeet was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in 1780 in his Histoire Naturelle des Oiseaux. [2] The bird was also illustrated in a hand-coloured plate engraved by François-Nicolas Martinet in the Planches Enluminées D'Histoire Naturelle which was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. [3]
The largest parrot by length in the world, the hyacinth macaw is 1 m (3 ft 3 in) long from the tip of its tail to the top of its head and weighs 1.2–1.7 kg (2 lb 10 oz – 3 lb 12 oz). [11] [12] Each wing is 38.8–42.5 cm (15 + 1 ⁄ 4 – 16 + 3 ⁄ 4 in) long. [11] The tail is long and pointed. [11] Its feathers are entirely blue, lighter ...
In contrast to most cockatoos, the cockatiel has long tail feathers roughly making up half of its total length. At 30 to 33 cm (12 to 13 in), the cockatiel is the smallest of the cockatoos, which are generally larger at between 30 and 60 cm (12 and 24 in). 1927 Brehms Tierleben painting
First described by French naturalist Anselme Gaëtan Desmarest in 1826, the superb parrot is one of three species in the genus Polytelis of long-tailed parrots. [4] Common names include superb parrot and, in avicultural circles, Barraband's parrot or parakeet, named after the artist Jacques Barraband who illustrated it for Francois Le Vaillant in 1801 [5] or green leek (although the last is ...
Adults can grow to 102–106 cm (40–42 in) long, with a standing height of up to 100 cm (39 in) and are estimated to weigh approximately 4.2 kg (9.3 lb). Among standard measurements, the wing chord is 52.3–57 cm (20.6–22.4 in), the tail is 30 cm (12 in), the tarsus is 11 cm (4.3 in) and the culmen is
Sulphur-crested cockatoos are 44–55 cm (17.5–21.5 in) long, [7] with the Australian subspecies larger than subspecies from New Guinea and nearby islands. The plumage is overall white, while the underwing and -tail are tinged yellow. The expressive crest is yellow. The bill is black, the legs are grey, and the eye-ring is whitish.