Crossed bill

Crossed bill

Observation - Crossed bill. Description: There seems to be lots of complex material on the taxonomy of these with some suggestions that different species can only be determined from analysis of a sonogram of the calls. So I thought I'd add this one here to see what views people have.

There seems to be lots of complex material on the taxonomy of these with some suggestions that different species can only be determined from analysis of a sonogram of the calls. So I thought I'd add this one here to see what views people have.