For the identification of insects and other fauna and flora of South Africa.

Tuesday, March 17, 2009

Black Eagle

This was much too easy for all you clever people . Well of course TWO people were wrong again as usual. I just dont know what to do with the two of them. They are going to have to come to Africa and see some live animals and birds for themselves. LOL!! Everyone guessed it was a bird of some kind. :) Thanks for playing everyone.

The Black Eagle is one of the largest eagle species we have here.
Eagle pairs spend approximately 95% of the daytime together. They will perch, fly and hunt together, should the female fly to the nest site the male will follow and usually hops onto the surrounding rocks. After eggs are laid and when there is a young chick on the nest paired black eagles spend very little time together. During nest building 77% of their time is spent together but this decreases dramatically to 6% during incubation. As the young eaglet grows the time spent together by black eagle pairs gradually increases again.
The female black eagle is in charge of the nest site and can spend up to 94%-97% of her time alone on the nest, whereas the male will only spend 1%-5%. The eagles have had to adapt their prey base to include guinea fowl, francolin, red rock rabbit and in desperation the easiest prey –chickens, although this does not happen very often. The female may solicit mating by walking towards, or facing her mate bending forward, the male will mount her with much wing flapping. Copulation has been timed from a few seconds up to 12 seconds only. Mating can occur many times in one day.

They are very easily distinguished by the white V on their backs.
Two creamy white eggs are laid four days apart followed by a 44/45 day incubation period, both eagles sharing the incubation (approx 70% female 30% male - this varies from season to season), the fluffy white chicks are hatched 4 days apart. During incubation the adult birds will eat away from the nest so as not to damage the eggs.

No comments: