DS is 11 months and one of his new forms of communication is very loud screeching. It can really be very loud and piercing at times. He's done it for a few months, but lately it has become more frequent.
I don't think he does it for attention, as he'll often screech when I am right next to him playing or interacting in some way with him.
I think that I'd best discourage this habit and encourage him to lower the volume, but I don't know how to do it. Any suggestions?