On the question of whether humans are fish:
Humans and fish share a common ancestor, they are both vertebrates. If you therefore asked me "can you show me a picture of a vertebrate twiddling its thumbs", a valid response would be to show you a picture of a human twiddling its thumbs. I could not show you a picture of a fish twiddling its thumbs.
Likewise, swans and deinoncyhus share a common ancestor, they are both dinosaurs. If you therefore asked me "can you show me a picture of a dinosaur using a boat", a valid response would be to show you a picture of a swan using a boat. You might think I could not show you a picture of a deinoychus using a boat, because they did not document their work with cameras.
But in fact I can show you a picture of a deinoychus using a boat.

Do you see how arguments about birds not being dinosaurs are in fact doubly invalid?