If your BT puppy's ears are going to stand, they will be up by the time they are around 6 months old. They should show signs of strengthening and going up off and on from about 3 months onward. Teething keeps a lot of puppy's ears up and down, forward and backward curling, etc.

Were his parents and grand parents ears erect? Does he have heavy ear leather? Some Boston ears never go up, depends on their genes.

Jeannie Thomason