Thread by @UrsulaV

The comic quite rightly does not mention size, which is absolutely variable by region and can be very hard to tell from a distance, (though my usual mnemonic is “if you ask if it’s a raven, it’s a crow, if you ask if it’s a small plane, it’s a raven.”)

https://twitter.com/rosemarymosco/status/1435631843102142474

Also, the size thing only works on the Common Raven! You go south and get a Chihuahuan Raven in the mix and it’s big, but not THAT big, and you end up going “fuck, crow or raven, can I get it to hold a banana for scale?”

And we had a huge problem—or rather, I had a huge problem, as the primary birder—in China because the Thick-Billed Crow has (surprise) a very thick bill and is only a smidge smaller than a Common Raven (23” vs 25”) and we were in an area of range overlap.

You kinda had to do it by proportions on the head. “Does this look like a freakishly undersized head for that beak? Thick-Billed Crow!”