I could use Potter to get rid of all the rats that are living under the shed,

Sorry about the little bird attatch a bell to Potters colar then there is a less chance of this happning again because the mice/birds will hear the bell comming then they'll know to be aware of what it is.

I belive all outdoor cat owners should do this because too many song birds are going.

Maybe you should have kept the baby bird in the house then called a wild life centre or even took it to the vet, just saying cause that's what I would have done but then again im just nuts over birds lol.