I didn’t really know how to model the head, so I simply cut some pvc board in the shape of the head, glued it together and slowly molded it into something that at least looked like a head. If you squish the foam it doesn’t crack and you can make it curved. I glued the two sides together, cut some parts off, added other parts inside, and gradually made it three-dimensional.
The head, after a lot of squishing, cutting and gluing
It doesn’t look like a Guidraco, but perhaps some weird kind of Pelican.