As it would appear these two mate’s only have ONE leg. Or at least that’s all they wish to use.
These birds migrate in the winter to the southwestern United States and Mexico. They often migrate in huge flocks with other species of birds. These blackbirds are only permanent residents in the USA of the San Joaquin Valley and the Lower Colorado River Valley of Arizona and California.
The male Yellow-headed Blackbird defends a small territory of prime nesting reeds. He may attract up to eight females to nest within his area. The male helps feed nestlings, but usually only in the first nest established in his territory. The other females have to feed their young all by themselves.
Song a few musical notes followed by harsh, scratchy buzzing, like very large, very rusty metal hinges squealing.