Adult male cockatiels have bright yellow faces, dark grey bodies and solid grey tail feathers with no barring. Adult female cockatiels have grey faces with traces of pale yellow, dull grey bodies with a brown tint and patterned tail feathers. Males whistle frequently, while females are fairly quiet.Know More
Cockatiels are native to Australia. They have slender bodies, pointed wings and a long, pointed tail. Cockatiels have an erectile chest that they raise when they are excited or alarmed. They have a grey hooked beak, dark brown eyes and grayish-brown legs.
Cockatiels are frequently found in large flocks of up to several hundred birds. The groups often make long flights between foraging grounds, watering holes and roosting sites. Their main foods are seeds, berries, fruits and nectar. They also eat some crops such as sorghum, wheat and sunflowers. Although cockatiels usually forage on the ground, they sometimes forage in trees and shrubs.
Cockatiels breed between April and July in the north, and August and December in the south. They nest in hollow trees lined with wood dust. Because the species has a long tail, it must enter the hollow tail-first. Cockatiels mate for life and live up to 20 years in the wild.Learn more about Birds
Grasshoppers are sexual dimorphic, meaning that the sexes differ in size, with males being smaller. Grasshoppers also differ slightly in the shape of the abdomen depending upon their sex.Full Answer >
The main differences between a male and female quail lie in the way that they are colored. A female quail generally has a lighter and spotted breast while the male has very few spots on their rust-colored breast.Full Answer >
Ducks are identifiable by their broad, flat bill and short legs while geese are larger than ducks, have shorter bills and longer necks. Ducks and geese also have different social structures, which contributes to their identifications.Full Answer >
There are three ways to differentiate between male and female canaries: genital inspection, color appearance and early song. Breeder Sebastian Vallelunga considers inspecting a sexually mature canary to be a virtually foolproof method, the male having a pseudo-penis that protrudes from his vent, while a female has a round dome protruding above the vent. Females ready to breed have an even, torpedo-shaped belly that narrows at one end.Full Answer >