Ape Ears and Beaky — Nancy J. Hopper

Thirteen-year-old Scott struggles to learn to control his temper, but not before it's led to all sorts of trouble, including dismissal from one baseball team, humiliation on another, and involvement with his enemy Beaky, in a plan to catch some professional thieves.When his archenemy Beaky calls him Ape Ears, hot-tempered Scott Pritchard overreacts and, as a consequence, finds himself cut from two baseball teams, sent to a counselor, and, somehow, involved with Beaky in a plan to unmask thieves