When parrots screech a lot, it's usually because they want attention. Running to the bird each time he screeches or sternly telling him to be quiet won't work as it reinforces the behavior. He's getting what he wants. When your bird screeches walk away and ignore him. As soon as he stops, even for a moment, show him attention. He'll eventually begin to understand that the only time he gets attention is when he's quiet. If you must be in another part of the house and the screeching is really annoying, you can cover his cage. But I wouldn't do this often because it's only a temporary fix. If your bird continues to screech when your husband passes his cage, try modifying the bird's behavior. Have your husband feed the bird and change the water or give treats,.. It might be the bird acting territorial. If he sees that your husband is a source of good things, it may encourage him to stop screeching.