As far as these Kingfishers are concerned, the girls are the pretty ones and the boys have to make do without the namesake rust-colored belt. Wiki calls it reverse sexual dimorphism.
As seen on the island at South Lake in Golden Gate Park, 40th Ave and Lincoln:
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This is the closest I’ve ever been to a Belted Kingfisher, as seen through one of these, which cost 100 times as much as the tripod I used it on. (I can’t be lugging monstrous $700 carbon fiber tripods all over town easily so these days I only have lenses in the 6-pounds-and-under-category. Tripods are not for me, I’ve decided.)