Who said making sense of the "evidence" would be easy?
~Michael_Michaelangelo, FR, Jan 2005
recognizing a new species during a formative stage can be difficult, because biologists sometimes disagree about how best to define a species.
~John Rennie, Scientific American, 15 Answers to Creationist Nonsense, June 2002
That would be expected with evolution. All relationships are a matter of degree.