it seems obvious that buying a crow call & blowing it will work. lol for me that wasnt the case. i tried mimicing the sounds that crows make but never seen any coming to me. today, the 2nd to the last day of the season lol i just made the call sound erratic & loud. like a dying crow. & it finally worked for me! i called in 3 different ones after the e caller quit bringing them in. i felt like a world champion duck caller. lol i did see this being done on splash ones video so i tried it. thanks for that. i hope for anyone having trouble will try this technique. its cool calling in animals with mouth calls.