I also have to give F&SF major kudos with the extremely fast response. I mailed (yes, mailed) the story on May 21. That's a response in 12 days. Very impressive.
I'm quite fine with the "no". I wasn't quite sure if "Owl" was a F&SF story or not, but thought I'd give it a shot. On Monday it will go off to Flashpoint (as recommended by Mary Rosenblum). Time to find the address and guidelines.
My first rejection slip! Am I a writer now?