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12 BILL DESIGNS IN BIRDS

Lynette Rudman

Birds' bills have evolved to serve various functions beside the procurement of food. Bills are also used for carrying nesting material when building a nest made of twigs or weaving an elaborate nest (weavers) or constructing a mud pellet…

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,…

Out of the blocks with a bang...

Derek Keats

We’re now 2 months into the year, with a pretty explosive start to the rarities scene. On Birding Big Day on 28 November last year, a team in KZN picked up a gull at St Lucia estuary, only reported 5 days later to the disappointment of…

The Rules of Twitching!

Derek Keats

Here in Southern Africa, the start of 2021 has been a special twitching season. Over this period a host of good rarities have showed up in many parts of the country, most notably the Cape, Eastern Cape and KwaZulu- Natal. This was the case…

Basic evolutionary biology for birders

Derek Keats

The video contained in this page was a webinar on Learn-the-Birds in October, 2020. Birds have played a critically important role in the origin of the theory of evolution by natural selection, and continue to play a significant role in…