Canadian Goose limping on my college campus - How do I help? Is it an injury or illness? Will he survive?

Hey, so there’s been this limping goose at my college. I just noticed him today. it an injury? Is it a condition? Is it an illness? Is it a sign of it dying? Will he survive and recover or die? What can I do to help? I’m not sure whether to leave him and wait for him to recover (if he does) or try and get in contact with a bird rescue person. Any feedback would help. Seeing him limp and not being able to catch up with the flock breaks my heart 💔