What was this cartoon movie ...?

So I don't remember all of it, but I do remember bits and pieces... I think at the beginning there were these dinosaur like creatures playing golf?? And there was a little bird .. I think the dinosaur was telling a story to the little bird.. I think the story involved a little girl and her brother??? I'm not too sure.

I remember this one part where there was a creepy looking old man and then these crows or ravens like surrounded him and once they flew away the old man was gone and there was just like a bolt or washer or something spinning on the ground left ... I know, sounds strange right? I think the movie was based around this strange circus.

Anyways ... That's all I can really remember, I was really young the last time I watched it.. but it was a really good movie and I would like to watch it again. Does anyone know what movie I am describing?