This is very serious and kitty needs a vet ASAP. If there is ANY way you can put out a trap to trap this kitty, please do so!
You can call around to local vets to see if someone has a trap you can borrow. If you feel you don't want to be responsible for this, you can call local rescue groups to see if they can help. If you want to do this, you can also call the local rescue groups to see if you can rent or borrow a trap from them.
Here are some helpful links. To find local rescue groups:http://www.pets911.com/organizations/organizations.phphttp://www.alleycat.org/orgs.html
If you want assistance, apart from contacting those groups, you can contact the Best Friends No More Homeless Pet network: http://www.bestfriends.org/nomorehom...ts/thenetwork/
There is a link for "E-mail animal help" down at the bottom right-hand side of the page.
Please keep us posted!
Oh - this poor baby!