Martin Waddell, Owl babies, Candlewick, 2015
Three owlets are waiting for the return of their mother who has gone hunting but she doesn’t return soon enough for them. The owl siblings start to imagine what could’ve happened to their mum and to be frightened but they try to make each other brave, until their mother returns.
It's a book that can help children to deal with detachment from the parent, while waiting for their return.