sick baby pigeon....help quick??

[Kirsty]

Hi
about one week ago my husband and I rescued a baby pigeon.
It had been attacked and was missing a few feathers and has a few grazes.
we have fed it (Clementine) wheat soaked in water and it picked up alot.
Since then it was attacked by a crow and lost more feathers and went into shock. For a couple of days after she bounced back again and was always chirping for food. But now for the past two days she does not chirp or act interested in food or water and sits very still. She has cuts to her head and is missing a little of her beak and part of one toe. We really want to care for her but im scared shes got an infection or something???her poos are fairly runny and she can be a bit off balance
please help...?!!!
from Kirsty