|Redundant bird names?|
I always wondered why the Black-capped Donacobius was not just called the Donacobius, since there is only one of these. By the way, I don't know where Donacobius comes from. So it occurred to me to find out how many other 'redundant' bird names there are, and here is a list for the version of the IOU database I am running...
Sao Tome Shorttail