I had to stop and watch this video twice. It is truly fascinating. This is a male spending everything he has so a female will choose him. Courtship is expensive. These males are not showing off for the camera. They are spending energy, risking predators, and advertising genes. What you are watching is mate selection in real time. Birds-of-paradise (New Guinea and nearby islands) cleared display courts and built living ornaments; iridescent breast shields, wire plumes, and capes that only work at a precise angle of light. Females choose. The prairie bird is a Greater Sage-Grouse on a lek. Same rule, different stage. Males gulp air, pop yellow throat sacs, and fan a spiked tail at dawn. One or two males usually win almost every mating. The New Zealand tūī uses white throat tufts and a wild mix of notes. The myna is a skilled mimic with a yellow “mask.” The red-winged blackbird flashes those red-and-yellow epaulets from a cattail and sings to hold a marsh territory. Different continents. Same math: females pick, so males step up their game. Watch the posture, not just the color. The fan, the freeze, the bounce, the gape. Those are signals honed over thousands of generations. Nature did not do this by accident. It did this because choice is ruthless and beauty is a bill that has to be paid. If you watch it again, I am certain that you will see more the second time like I did.