Peter Rabbit in my backyard

Came home to our 150 lb dog going nuts and on the ground by the fence. He was staring down this scary little thing! HAHA. Daughter who lives next door has him indoors now. Little male baby bunny rabbit. Was almost frozen (been sleeting and snowing here all day) and wasn't moving much at all. Now that he's all warmed up, he's trying to jump. Yes, my daughter named him "Peter".