I usually just keep going to the field and if he doesn't chase I just come back to my Mr. Frosty routine. I don't use a lot of baggy, but I am sure that a very clever set up baggy will be a great help. I just wonder which part of the world do you live. I live in Thailand and it is very warm so take my bird weight down quite low is not a problem. For a young tropical bird of prey like a shikra or a crested goshawk, one start to click when the weight sometimes goes down lower more than 20% of the fat weight.