I'm surprised that the posters who have their own blueberry bushes haven't reported any problems with birds eating their berries. When I was growing up we had a few blueberry bushes, but unless we covered the bushes with cheesecloth, the birds ate the entire crop. Even now at my own place, I have to cover my tomato plants with nylon netting (much better than old-style cheesecloth) or birds & squirrels will eat the majority of my crop. I don't have any blueberry bushes now, but I have some gooseberries, raspberries, & fig trees. Birds and squirrels eat mass quantities of the figs. I deliberately selected gooseberry varieties which aren't red when they're ripe, because red is a signal to birds that they're edible. Raspberries are the one berry which usually isn't eaten by birds here. I think it may be because raspberries are at the end of the prickly canes and there isn't anything to perch on, and squirrels can't climb up, either.