Has anybody ever seen a bird with different colored eyes? Photos of a Ring-billed Gull with a brown right iris and pale left iris--plus different colored legs as well--are posted here:
The phenomenon is known as heterochromia iridis and is widely reported among mammals, including humans, but extremely rarely in birds. I've searched the Internet extensively and found only a few published reports thus far, so I would like to know if anybody else has ever seen such a beast or knows of any previously published reports.
Hidden Valley Lake, CA