I agree with Redfeathers, dont be too hard on yourself, these things happen.
They could have been smothered if others crowded into the nest box on top of them. Piling is often a cause of younger chicks demise but it can still happen to older birds if they are trapped.
Im really sorry.
Chel
They could have been smothered if others crowded into the nest box on top of them. Piling is often a cause of younger chicks demise but it can still happen to older birds if they are trapped.
Im really sorry.
Chel