Fire Started by Flaming Bird
I've heard of squirrels starting fires this way, but not birds (from the Hollister Free Lance via FireFightingNews.com).
Saturday’s fire started after a bird flew into power lines, burst into flames, plummeted to the earth and ignited the dry grass, according to Kinoshita. It was contained within a half-hour and fully extinguished within three hours, he said.“It was a bird-into-a-power-line type of deal,” Kinoshita said, adding that fires caused by flaming birds are “not too common.”
"Not too common" is a slight understatement - hehehe.

