Wiley Blevins 
Bear’s Bad Day [PDF ebook] 
Bullies Can Change

Bear lived in a cave all alone, but when he goes out in the forest to find friends, he is gruff and offends everyone he meets. Until Bird points out that he’s being a bully. Bear thinks about his actions and realizes it was his own way of trying to keep from being hurt by rejection. After he apologizes, he has plenty of new friends who flock to the big loveable bear.