“All the world’s a stage” wrote the Bard and now we find it’s true for flashy bowerbirds as well. Havent we, at some time, marveled just a bit at the bower bird’s attention to presentation and detail. According this report male bowerbirds select the size of objects to enhance the perspective effects of distance from the perspective of the female. These effects exist in the fun houses of amusement parks and museum dioramas. Bowerbirds use the effect to make the male seem larger. How do the birdbrains do that?