just got into it but i love crow hunting. I would suggest smokin the scout so he dont do what you said, set up and warn others. i really like the birds that come in as solos or pairs so when you shoot it, it dont scare off multiple other birds that came in with it. last weekend we went out and called in over 120, only knocked down 4, and found only 2. you can check our rather short video of it out on huntingfootage.com.

I suggest adding motion, decoys in trees, and staying VERY well hidden and dont follow them with yur lily white face while they are circling. These are the three main mistakes we made this weekend. I also found that the electronic caller brought em in from far off, but the hand call works much better once they are close, or once they came in and left, the hand call can bring em back in.

just my worthless 2 cents. check out crowbusters.com. it has worked wonders for me, cuz i was clueless about crow hunting a month ago. But im still a rookie by all means.