I googled the skulls.
probably not. Plus beaks have no teeth.
I guess you cant beleive every picture you see on the internet.
But there is a lot about T-rex's having Chicken ( Pheasant ) cartilage .
Although looks like there is "bony core" to some beaks http://en.wikipedia.org/wiki/Beak
that ends in keratin.
I'm not sure how much the whole organ ossifies over time.
You should write to Lego on getting Fuzzy pieces .