> Sandy Koonce wanted to know...
> "I was wondering how one tells if they were Northwestern Crows?"

According to my son Alex, it is all in the tone of voice.
The birder must say ....

"Those *are* Northwestern crows."

Any hesitation or lack of confidence indicates that the
birds in question are *not* Northwestern Crows.

Fortunately, very few visitors to the Pacific NW leave
without spotting at least one NW crow.