Hello XXXXXXX. Are you asking about a specific type of bird or just in general?
If you are asking about your own bird, what kind of bird or parrot is it?
How old is it?
Are you seeing a discharge like tears from the eyes, and/or are you hearing something that sounds like crying?
If it's something you are hearing, can you describe it as best you can?
If you can give me some more specific information, I'm sure I can help.
Thanks, Patricia