Nacktaugenkakadu

Bestimmung

The little corella is a small white cockatoo growing to 35–41 cm (14–16 in) in length and weighs 370–630 g (13–22 oz), with a mean weight of 525 g (1.157 lb). It is similar in appearance to both the long-billed corella and the western corella, but the little corella is smaller, and unlike either of those species, it has upper and lower mandibles of similar length. It is easily distinguished from the long-billed corella by the lack of an orange throat bar. C. s. normantoni and C. s. transfreta are a little smaller than the nominate form. C. s. normantoni is lightly brownish on the underside of flight and tail feathers. C. s. gymnopis has darker blue eye-rings, more strongly marked pink lores and a yellow wash to the lower-ear coverts. Females are slightly smaller than males in weight, wing length, culmen size, tarsus length, tail length and eye ring diameter.

Taxonomie

The first recorded description of the species was by English ornithologist John Gould in 1843. There are four subspecies as follows:<p>

Wissenschaftlicher Name

Cacatua sanguinea

Autorität

Gould, 1843

Ordnung

Psittaciformes

Familie

Kakadus (Fam. Cacatuidae)

Gattung

Cacatua

Verbreitung und Lebensraum

The nominate form, C. s. sanguinea is found in Northern Australia. C. s. normantoni is found on the Western Cape York Peninsula. C. s. transfreta is found in New Guinea. C. s. gymnopis is found in Central, Eastern, and South-eastern Australia. Habitat ranges from the arid deserts of central Australia to the eastern coastal plains, but they are not found in thick forests. Little corellas can also be found in urban areas, including Melbourne, Canberra, Sydney and Brisbane, where they feed on lawns and playing fields. They are numerous in farmlands throughout New South Wales and Queensland, and have become so common in some areas that they are considered to be crop pests, and can be destructive to the trees in which they perch, by chewing the bark off smaller twigs.

Zugverhalten

Standvogel

Verhalten

Zugverhalten: Standvogel.

Schutzstatus

Bestandstrend: zunehmend.

Bestandstrend

zunehmend