Glass Owl

I just came to a chapter called THE GLASS OWL in this Joyce Carol Oates book. And there was another owl, too, yesterday, I guess, about which I neglected to inform you, because don't you think I have better things to do with my time than compulsively inform you (whoever "you" are - I suspect "you" are me!) whenever I read about an owl in a book? Because I don't. Indeed it is my life's work. I wonder what this chapter - THE GLASS OWL - will be about! A glass owl?