Tom,
"Bob" Snow or Ron Snow? (I'm not familiar with "Bob" Snow) I took carving classes in '83 from Ron Snow. His brother, Doug, used to carve and teach classes also. Their Father, Walter, used to carve with Ben Schmidt and you see some of Ben's style with the stamping of feathers on those birds (looks like you have stamped feathers on those birds).
All three fellas carved lots of birds. Great find.
Lou