Ohio and Wabash River bottoms is where I hunt them its like duck hunting it happens early.I hunt a flyway early in the morning the crows will come from roost.They will come in a long line for 1 hour or better.You can also find a lot of birds in the evening flying back to roost but they will be scattered for miles so the shooting will not be as good.You can go find birds setting in field go find some woods 1/4 to 1/2 mile away and set up and draw a few birds.But that is a lot of work with not much shootingIf your a weekend hunter the flyway will change by the next weekend.Not by much but enough last weeks set up won't be on the flyway.Ilike to set up in shorter brush if I can the crows will come in lower.These birds have excellent eye site so face mask and being still are a must.My favorite way to set up is for me to be ahead of my decoys30 to50 yards.They will be looking more at the decoys.This way you get to shoot before they smell a rat.I use 6 crow decoys(and the dead ones make good decoys proped up with a stick)
and sometimes an owl decoy.Electronic call with crows fighting crows or owl fighting crows.Good luck