You're doing it too. "bigger", "more curved", "higher sound". All of those are comparative. None of them help you know a raven or a crow except in relation to some idealized specimen of the other, which one likely doesn't have in front of them.
I'll take the bait. Ravens' beaks are hooked s.t. the top curves slightly around the bottom, an over beak if you will. The crow's beak is roughly conical and does not hook in this manner.
Additionally the raven's beak is is longer than it's head is wide (in profile). A crow's beak from the same view is approximately the same length as it's head.
This one sounds pretty good. Thanks (finally)! From a cursory search on the subject, it seems like one might need to be relatively close to be able to tell?
Maybe. A challenge in birding is getting close enough to look at things without scaring them away. The thing about both crows and ravens is they are (relatively) unafraid of humans. So, you shouldn't struggle much to get a good enough look to differentiate.
That's assuming Ravens are present in your area. One of the first things the guide books teach is to differentiate based on range. E.g. a candidate crow/Raven in Iowa is most likely a crow, since Ravens' range doesn't include the great plains.
Let me finish by plugging birding as a relaxing pastime that doesn't require much investment (just a $25 guide book for your area), and can really enhance any time spent out doors.
How could you tell apart an adolescent raven from a crow that had injured its beak, though? Each of you is making something relative to something else. The beaks are hooked. How hooked? Conical as opposed to what?
