Yep. You can make friends with crows, and they will remember you for a very long time. If you get shiny things, then you're the crow's meow. Bones maybe just "meh."
Furthermore, crows can be sneaky. A murder of them hanging out behind my mechanic's goaded the dork of the group into stealing a bag sunflower seeds on top of a rolling toolbox 30 ft / 10 m on the other side of the shop from the roll-up doors. It had to figure-out how to sneak-in, hop up on the toolbox, and sneak-out without being detected like a bloody ninja. The group of them had a sunflower seed party in the alley and one mechanic wondered where his snack went to. And there were 3 people in the shop at the time! xD