This picture is obviously not Newton, I took it on a mountain peak in Virginia several years ago, but thought its always nice to have picture if possible. Also, as demonstrated in the picture, Ravens will soar and glide on thermals more like hawks, which crows don't do, so observing flight patterns can help with the identification.
On a side note, I took a walk in the very light drizzle in Cold Spring Park this afternoon before the trick-or-treaters were out. The highlights were a large loose flock of Yellow-rumped Warblers, 2 Hermit Thrushes, and 2 Brown Creepers. I'll have to come back during a better season so see what the park has to offer.