The can cry out from pain, however they don't produce tears out of sadness like humans do. Usually tearing is to wash irritation out of the eye.
I would suspect every animal human and otherwise has the capability of feeling grief and showing a form of grieving.
Yeah didn't you see the Phoenix in Harry Potter and the Chamber of Secrets?
Well, doves do. According to prince. :P
Yeah they do like
yes they do ;(