pbjosh
missing the neotropics
To the contrary, Thick-billed Longspur is noticeably bigger-billed in the field, and that is a useful ID feature in basic plumage. (I've used it in California.)
Wow! Well scratch that argument point then!! I didn’t feel like I could tell the bill was particularly more robust when I finally saw TB, but I guess that says more about me, and about how few Longspurs I see, than the bird