We had been having great spring weather, heard some birds and called them a little 1 week before opening day, which was April 6. Went down the 5th to camp and it had already turned off cold and started raining. Temps had been in the 70's at day, and mid to upper 40's at night. That night got to 35 and the next day was 38 with light snow. Not only did I not hear any birds, I did not hear a shotgun go off anywhere. I think this front that came through Oklahoma where I am turned them off.