While birding in the Northern Cape, "in the middle of nowhere", Chris Cheetham encountered a very odd prinia. It turned out to be a hybrid between Karoo and Black-chested. Learn more about hybridization in birds, and the wonderful world of these common but characterful 8-gram cisticolids. It took almost a year before I found the time to write this up. And now it's 01:15. AY EM. I'm off to bed. Want to get up early for more birding tomorrow!
How common is hybridization really? Probably more common than you think. Some estimates suggest that at least 9% of all bird species have interbred in the wild. A case-in-point is this apparent male hybrid between a Great Sparrow and Cape Sparrow that Ursula Franke-Bryson ringed in Namibia. I hope that this short guest blog from Ursula will entice birders to keep an eye open for the unusual – even with birds as everyday as sparrows!