I have written before about John Lounsbery's involvement in the character of Robin Hood. He started him off by animating a few scenes, before Milt Kahl took over Robin.
Early designs by Ken Anderson showed Robin with a thin neck and long nose. Then Milt added a bigger neck for a spiffier appearance.
The first three drawings are Lounsbery's. They are available at:
https://www.animationartgallery.com/category-s/18702.htm
This is Milt's version of Robin from a scene in the film's opening sequence.
