Awww. I am so sorry about your birdie! A few years ago, I found a baby on the sidewalk and tried to save him. Unfortunately he didn't make it. I felt good though for at least trying and maybe making his last hours good ones. You just brough back some good memories for me.... I remember as a kid bringing home baby birds on occasion, crying because I didn't want them to die. I dug up worms, and my dear sweet mother cut them up into little pieces so it would be easy for the birds to eat.
If memory serves, all but one of them survived. I can't believe my mother cut up those worms, how gross! I guess when you child is crying over a helpless creature, that is all it takes!