I am trying to find a book my mom had as a girl in the 40s or 50s. I thought the name of it was Giddy-Yappy but nothing is coming up. It was about a little colt learning to walk or maybe loving to run and he meets up with a bunch of little insects and forest creatures who have a band (or maybe just a party?)
There might be something in the following link.
Clicking on each ‘colt’ reference on the left, will produce the short book description on the right. It’s from roughly the right time period.