Evolution of birds

Village indigobird male and female.

A family of specialised nest parasites

Derek Keats

Most people are familiar with the nest parasitism – or brood parasitism – that is shown by our cuckoos, such as the Jacobin cuckoo and Diederik Cuckoos, where the birds lay their eggs in the nests of other bird species. These other…

African palm swift

Swifts and Swallows: Convergent Evolution in Action

Derek Keats

I live in the Hoedspruit area of Limpopo province of South Africa, and every summer, our skies are full of agile and fast birds flying around picking insects out of the air. In the dying days of our summer, some such as the barn swallow,…

Orange River white-eye

Learning about speciation from White-eyes

Derek Keats

When I first saw the Orange River White-eye a couple of months ago, it got me thinking about the group, and having seen white-eyes in different parts of the world, I wondered about their evolution. There is something weird about a group…