Kevin, I think I just have to many mulberry trees so the birds can't eat all the fruits. I also have a few Copper's Hawk that grew up near my house so they keep guard and eat fruit mice, squirrels, and other small birds in the trees. The hawks like to hang out in my citrus trees and plumeria trees. The hawk may have eaten the baby hummingbirds (nest and all) that was on my sapodilla tree under my loquat trees. The hummingbird eggs just hatch a week ago and now everything is gone.