The only errors I've seen it make with common birds in the UK are also with finches - specifically with the greenfinch's "at rest" twitter, which it consistentl

The only errors I've seen it make with common birds in the UK are also with finches - specifically with the greenfinch's "at rest" twitter, which it consistently mistakes for a goldfinch. The two are visually distinctive but, in Merlin's defence, I can't tell them apart by ear either!