Hear is a copy of my post to you from pigeons.org in case you see this first.
So sorry to hear about yet another poisoned pigeon. You really need a vet to administer a Toxiban treatment and a shot of atropine. I suspect this is not possible tonight so, let's try for a homespun remedy. If you have some activated charcoal capsules or tabs, mix it with some water .. maybe about 30 cc and syringe it into the bird. This will make a
huge mess when the bird starts passing the black fluid, but needs to be done. Wait
about 45 minutes and then start giving the bird all the fluids you can get into it to help flush the system. Keep the bird very warm. The activated charcoal should be available at any drug store or health
food store ... not exactly a product that we all have on hand. The charcoal is to help bind the poison and get it passed thru as quickly as possible.
Keep us posted and good luck. Remember Marian's last poisoned bird ... it pulled through even though it wasn't really
treated until the second or third day.