This is Bird Note.

Male birds are often the larger, flashier sex that courts choosy females, which in turn raise their chicks.

The male's attention-getting tactics include the virtuoso songs of lyrebirds,

the booming built-in bagpipes of a male sage grouse, and individual drumming rhythms of palm cockatoos.

However, in other species, females compete for males, and the males then tend the nest and raise the chicks.

With Jekanas, also known as Lily Trotters for the fabulous long toes that allow them to walk on lily pads,

females challenge each other over territories in which to house a cluster of males half their size,

and the males perform all the childcare.

The females of three species of phallaropes,

Wilson's Redneck and Red, also rule the roost. They fight over males, sometimes mating with

many. The female chooses the nest site, but then leaves the male with incubation and raising the young.

Other stay-at-home dads include most of the ratites, such as ostriches, emus and kiwis,

which branched off early in bird evolution, suggesting that this childcare arrangement may have very old origins.

For bird note, I'm Wen Fetong.