There is a vet near where my mom lives that helped me with many wild critters when I was younger. Once I found a baby starling that was mortally injured and I held it and waited for it to die (bawling my eyes out) the poor thing wouldn't die so i walked down to the vet and he euthanized it for free, I had a rat that was fatally injured once too (broken back) and that same vet euthanized the rat without charging me. Even when I found my first dog unconscious and carried him down to that vet, and it was obvious Blackie's time had come, the vet put the cost of euthanizing him on credit because my mom was at work. They even sent a card afterwards.