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Bird reproduction
Male birds establish they territory, driving other males from the area and attracting females by singing, dancing and displaying their brightly coloured plumage
More than 90% of birds mate with the same partner for the breeding season; some species pair for life.
Both parents build the nest and take care of their young. The eggs are fertilized internally and laid in the nest, where they are kept warm. Most chicks are dependent on their parents for food and warmth at birth. Other species of birds are able to walk, swim and feed when they hatch, though one parent is usually nearby to guide them.
Black Footed (Jackass) Penguins
Find them at the Penguin Pool
Jackass penguins pair for life, returning to land to nest in burrows and mate. They lay two or three eggs, which are incubated by for around five weeks. Both parents care for their young, taking turns to guard the chicks and search for food. Only 40% of eggs laid survive. Penguins reach maturity at three to four years of age.
Abyssinian Ground Hornbill
Find them at the Parrot House
Abyssinian ground hornbills build their nests in tree trunks or rock clefts. The female lays two eggs which she nurtures for a month, relying on the male to bring her food. The eldest chick is much stronger than the youngest, who is often unable to compete for food and dies. The surviving chick leaves the nest after three months, but is fed by its parents for another nine months.
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Birds and Bees (1.8 MB)
