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The kea is a large parrot measuring 46 to 50 cm (18 to 20 in) in total length, with some specimens possibly reaching 55 cm (22 in). [ 18 ] [ 19 ] [ 20 ] Adult kea weigh between 750 and 1,000 g (1.65 and 2.20 lb), with males averaging 956 g (2.108 lb) and females averaging 779 g (1.717 lb).
The kea is the only alpine parrot. ... (family Corvidae), parrots are considered the most intelligent of birds. The brain-to-body size ratio of psittacines and ...
The kākāpō (Māori: [kaːkaːpɔː]; [3] pl.: kākāpō; Strigops habroptilus), sometimes known as the owl parrot or owl-faced parrot, is a species of large, nocturnal, ground-dwelling parrot of the superfamily Strigopoidea. It is endemic to New Zealand. [4] Kākāpō can be up to 64 cm (25 in) long.
The New Zealand parrot family, Strigopidae, [1] consists of at least three genera of parrots – Nestor, Strigops, the fossil Nelepsittacus, [2] [3] and probably the fossil Heracles. [4] The genus Nestor consists of the kea , kākā , Norfolk kākā and Chatham kākā , [ 5 ] [ 6 ] while the genus Strigops contains the iconic kākāpō . [ 5 ]
Of the nine species in the New Zealand parrot superfamily Strigopoidea, the Norfolk kaka [1] [2] and Chatham kaka [3] became extinct in recent history. The last known individual of the Norfolk Kaka died in its cage in London sometime after 1851, [4] and only between seven [5] and 20 [6] skins survive.
The New Zealand kākā is a medium-sized parrot, measuring 45 cm (18 in) in length and weighing from 390 to 560 g (14 to 20 oz), with an average of 452 g (0.996 lb). [15] It is closely related to the kea , but has darker plumage and is more arboreal .
In general, birds have relatively large brains compared to their head size. Furthermore, bird brains have two-to-four times the neuron packing density of mammal brains, for higher overall efficiency. The visual and auditory senses are well developed in most species, though the tactile and olfactory senses are well realized only in a few groups.
Parrots, also known as psittacines (/ ˈ s ɪ t ə s aɪ n z /), [1] [2] are the 402 species of birds that make up the order Psittaciformes, found in most tropical and subtropical regions, of which 387 are extant. The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the ...