Here's how we would do it :

1) Find a "flyway" if possible.
Find where crows are feeding during the day or where they roost.
Never hunt the feeding area or the roosting area but rather set up somewhere along their flyways to and from.

2) We had a couple of 30-40 foot tall trees where we would set up.
12 crow decoys went on one tree and one owl decoy was in the second tree.
Put the owl on a long pole so you can get him high without breaking your neck.
Make the crow deeks look as natural as possible.

3) You have to build a super-tight blind.
Way tighter than a duck blind.
Even with a nice tight blind, crows will sometimes look "down the chimney" and bust you.

4) We used an old Johnny Stewart e-caller.
"Death Cry of a Crow" was the best.

5) If you're set up right they will come pouring in.
Sunny days are best.
We never had to move around like you would for yotes.
One good set and a good location, new "customers" are always rolling in.

6) Hold your fire until you can at least score a double.
Crows can turn and burn quick.

7) Hot 1 oz loads of 7.5 or 8 shot at about 1400+ fps
Bring lots of ammo.
If I recall correctly, I'd take 8-10 boxes of 12ga


B L M - Bureau of Land Management