... only does Her Majesty fancy them, but Mike Tyson is a fan. Plus, Maurizio Gucci once spent $10,000 on an American pigeon. 5. They're clever: Pigeons are one of the only nine amimals (and the only non-mammal) that can recognise itself in a mirror. 6. They bob their heads for a reason: Their side-mounted eyes give them monocular vision, unlike the binocular vision of humans and owls, so they ...