RE: B-mobile
LOL. Team 5, not surprised.
Depending on what you read they say all kinds of times. Some say early before the birds have had a chance to get their tail kicked by a real strutter. Some say later in the season when the birds have spread out and a dominant bird would not have an intruder on his grounds. Tough to say. My advice would be to see what works best for you. I'd try mid-season for sure.