What happened to Kestrel?

Whatever happened to Kestrel? She (who actually looked like a he) just vanished from the start of Series 3. Did she die? I am not upset, annoyed or anything, just wondering what happened to her and her annoying "kee kee."



The book explained that s/he (Kestrel is male in the books) flew away to another park to hunt without risking killing Farthing Wood animals, like she did to Mrs Fieldmouse

I'm gonna die of long hair!