Vegetarian, Vegan and Animal Rights

A few years ago my Mother in Law had a bluebird house on a post in the yard. One day a blue bird kept gently running into the window by her chair. She looked out several time to see the bluebird making a fuss and mostly ignored it. After several hours she went outside and saw that the door on the bluebird house had come open and the nest was exposed. She fixed the door and the bluebird seemed to be happy and stopped it's strange behavior. Birds can be pretty smart sometimes.