A Colt Named Mischief
Sandy Rabinowitz, also illustrator
1979, Weekly Reader

Sara's frisky colt Mischief drives her father, a farmer, crazy with his shenanigans - chasing dogs, knocking over milk pails, harassing the other animals and just generally causing trouble. When the last straw comes, her dad decrees he must be sold. But fate intervenes.

A picture book with cheerful, soft-edged 1970's illustrations. The colt's personality is evident in the clever drawings, though the heroine's short-shorts look a bit extreme by today's standards.

Horse
Mischief - chestnut (based on illustrations) colt