The Blue Footed Boobies, native to the Galápagos Islands, make their "nests" on the ground by encircling their eggs with a ring of poop.

If one of the little baby Booby's steps out of the poop ring the mama Booby will no longer recognize it and will fight it off when it tries to come back in.

Below is a little video of two Booby's doing their love dance. Human men need to up their dancing game!