Smitty,
As with all other game hunted, you' re only going to be as successful as your scouting is. Calling crows isnt too hard as long as you find where they are at. I usually ride and check out dairy farms, cut corn fields, hog lots, freshly spreaded manure spread on pastures, cultivated fields, etc. When you find these places you' ll know it because the crows will be there. I have hunted crows pretty hard for the past two winters and these are the types of places I do the best in. Obtain permission, build a blind where they are coming to feed, set your dekes out, be there at daylight, and have a ball.
GB