Window strikes kill a surprising number of birds every year - between 100 million and a billion birds in North America, according to one source.
But I was motivated to research this issue last week, after I heard the tell-tale thump and went outside to find a dazed orange-crowned warbler lying face-down on my porch. I have one particular window that is apparently very attractive to birds, and although I have tried several fixes, I have yet to find the one that does the trick.
I brought the fellow inside, and laid him in one of my custom wild bird recovery suites. (A cardboard box with a tea towel laid inside, and another tea towel draped over the top.)