Max, your bird bowls are so welcome in the zoo. If you would like me to add them, just email me the picture. I agree with Tami that they have a look that they were designed by Gaspari and executed by Livio Seguso for Salviati. The head and beak look like them. To add a little more about Livio, he was actually working with Barbini when he executed most of the Gaspari designs. Then he left Barbini to work at Salviati for a while. Livio makes glass & wood architecural pieces now that I don't like much. I love his old work.