Cows are a lot of fun to draw. It is fascinating to watch their "boney" anatomical structure in motion. The hip bones alone are so unique and great to analyze. These wonderful sketches are are by Bernard Garbutt, who worked at Disney as a an animal drawing instructor for a few years during the Golden Age of Animation. I love these pages from his sketchbook because of the loose quality combined with astute observation.
Makes me want to visit a farm and do my own cow life drawings.
Here's a link to a previous post on Garbutt's art:
https://andreasdeja.blogspot.com/2012/02/bernard-garbutt.html