Would like to see something done about the Tufted Titmouse, Black-crested Titmouse, and Tufted x Black-crested Titmouse (hybrid) mess.
Don't know that un-spliting them is the answer, while clearly I haven't been testing genetics, I can tell there is considerable differences other than just looks. So I don't have a problem with them being two species, but this hybrid range in the middle of them is a real mess. Where does it start and stop? As you go east they start looking more and more like Tufted, and going west like Black-crested, but at what point do decide you are seeing "pure" birds?
Also, for some reason, there is very little information about the hybrid range, and as a result most people report them as pure birds, which is incredibly annoying.