Tomatoes
Some environmentalists have an infantile and fanatically despondent self-loathing view of humanity — that somehow, we're just not a natural part of the ecosystem. And that pretty much all our influence on nature is negative, while all other creatures live in perfect, beautiful balance with it, allowing nothing to go to waste.
Well, screw that. Birds are damn wasteful. This isn't the result of birds being scared away mid-meal — this is just the normal way birds eat tomatoes. Got some netting up eventually, but the first half dozen tomatoes went to the birds. Bastards.