Breeding
The Blue-winged Kookaburra is a cooperative breeder, a group being made up of a breeding pair and one or more helper birds who help raise the young. Breeding occurs once a year in late spring (September to December). The nest is a hollow high up in a tree, often 25 m (80 ft) or so above the ground. Three or four white slightly shiny eggs measuring 44 x 35 mm or a little larger are laid. The female incubates the eggs for around 26 days, and nestlings spend another 36 days in the nest before fledging. Chicks are born pink, blind and naked, and break their way out of the egg with an egg tooth on the bill. Feathers appear by seven days and their eyes open from the tenth day onwards. Kookaburra babies are often highly aggressive in the first week of life, and the youngest chick is often killed by the older chicks during this period. Once fledged, juvenile birds need to be taught how to hunt by their parents for a further 6–10 weeks before they can properly fend for themselves.
Read more about this topic: Blue-winged Kookaburra
Famous quotes containing the word breeding:
“The surest route to breeding jealousy is to compare. Since jealousy comes from feeling “less than” another, comparisons only fan the fires.”
—Dorothy Corkville Briggs (20th century)
“The Fashionable World is grown free and easie; our Manners sit more loose upon us: Nothing is so modish as an agreeable Negligence. In a word, Good Breeding shows it self most, where to an ordinary Eye it appears the least.”
—Joseph Addison (1672–1719)
“Civility, which is a disposition to accommodate and oblige others, is essentially the same in every country; but good breeding, as it is called, which is the manner of exerting that disposition, is different in almost every country, and merely local; and every man of sense imitates and conforms to that local good breeding of the place which he is at.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)