Margo

I am responding to Topic 1.  I would ask the neighbor if she had actually seen the crow killing the nestlings.  If she hadn't, I would tell her that odds were that it wasn't a crow.  Crows are opportunistic, and will eat baby birds if they come upon them, but it is much more likely that the predator was a snake, squirrel or raccoon, among other predators that eat baby bird much more often than crows.