From the starting point of 'Chased him all the way up to the upstairs, I don't think the bird ever even pooped in the house not that we found--', does 'The bird never relieved itself in the house.' follow as a logical conclusion?
Chased him all the way up to the upstairs, I don't think the bird ever even pooped in the house not that we found--###The bird never relieved itself in the house.