Cockatiel (Nymphicus hollandicus)
The cockatiel - the only species in the genus Nymphicus from the cockatoo family. Body length including tail is 30-33 cm, tail 14-16 cm, weight around 100 g. Distinctive features include a high crest and long pointed tail. Sexual dimorphism is pronounced: males are brighter - with a yellow head and crest, velvet-black flight and tail feathers with bluish-gray tint, and orange-red cheek patches; females are generally duller, with pale gray head and yellowish markings on the flight and tail feathers. Juveniles resemble females in coloration and acquire adult plumage after 10-12 months. In captivity, many color mutations have been bred - albino, white, lutino, light gray, "cinnamon", dark yellowish, "cheek", pearl-gray, white-winged, black-winged, "black", etc.
Sexing
Until 9-12 months, sex can only be reliably determined in naturally colored birds. Behavioral signs of males include active beak tapping, complex singing, characteristic hopping and “heart-shaped” wing posture, generally noisier behavior. After juvenile molt, natural males display a yellow head, bright orange cheeks, and uniform inner wing and tail feathers. The only 100% reliable method is a DNA test.
Range and habitat
Cockatiels inhabit arid regions of Australia - grassy plains with scattered trees and shrubs, river and lake plains, sometimes semi-deserts. Outside the breeding season, they form flocks of 10-50 individuals and gather near water during droughts. This bird belongs to the category of parrots.
