Birds in trees

The birds in the trees on Hampstead Heath seem mostly to be crows -

 Or rooks. I still can't tell them apart.

 If they see you point the camera at them, they fly away, the rascals.

This bird is a parakeet - cut off from the rest of the flock for some reason. It's a shame the dull light doesn't show the bright green of its plumage -

Although the sky was overcast today, the gold leaves still on the trees looked wonderful against the greyness -