Males have larger (I forget the technical name) "things" sticking out under their necks. Dora, at the Mojave Preserve office, said based on his size he was a real oldster.
He was in full stride with head and legs fulled extended when I came around the corner. I was so overwhelmed by his natty bowler, cane and spats it took me a bit to remember the camera. By then he'd discerned my intentions and, quickly changing to his Chairman Mao gray's, he pulled in and "parked."
I put out a bit of apple as enticement with the bottle for scale. But he was having none of it. After a bit, I decided it best to leave. But if you'd seen him before he was overcome with shyness, I think you'd agree he'd have done great alongside Gene Kelly.