My newest doeling said "MAAAA!" at five weeks, then it went to "BLAAAAAAAH!" for a couple of months, now it is a combination of the two, but more like "Meh.....bleh...." and not so loud all the time. She is adorable. I miss the "BLAAAAAH!" The neighbors get a kick out of it, as do we.
One of my neighbors dropped in a while back to tell me that, just a few days before, he'd dropped what he was doing and came shooting over to my place to rescue whoever was screaming "HEEEEEEEEELLLLLLLLLLLP"..