The way it's been going in my area with all the hawks and whatever else is making birds get lost the past few years even losing half is being optimistic. Guys who never used to lose birds are losing 3/4's if not more of the birds they raise. There's so many stories about hawks hitting the board with the YB's out for the first time and losing half their team in one shot. They did away with almost all the band races because their wasn't enough birds making the races. You'd sell 500 bands for a race and only 100 would be shipped. Now almost everything is bond races where you buy the bond instead of a band and ship your best birds. Instead of hoping you don't lose the birds you banded with that $100 band atleast now you know if you buy 5 bonds you'll get 5 birds in the race. That's if you have 5 birds left in your loft and some don't even have that by the end of the season.Between settling, training and racing, prepare to lose half......anything less and you're doing well.