Frank Thomas' animation of Bambi and Thumper on the ice is legendary.
This story sequence was almost cut from the film, Walt Disney questioned its importance within the overall plot of the film.
Marc Davis had sketched the storyboards, and Frank got all excited over the possibilities for personality animation . In order to convince Walt that this might be a highly entertaining part of the movie, Frank posed out the whole sequence for Walt to see. The rest is history.
What a great contrast between the characters. Thumper is so comfortable on the ice, he is a champ skater with his low center of gravity. Bambi is the opposite. His long legs prevent him from balancing his body.
It's animation business galore.
I noticed that Frank drew Bambi with solid, sometimes bulky legs. Milt Kahl was already in the business of stylizing a deer's anatomy with much thinner legs. (A trend that would continue with Prince Philip's horse Samson as well as Pongo.)