Guess what indecisive female Satin Bowerbirds do during their nuptial visits to male bowers? They nervously nibble blue paint. Really. https://goo.gl/G3HCqP
Picking the right male can be overwhelming. A girl needs a tasty diversion. Even mammals face similar quandaries. If the female isn’t careful, she may enter a male’s bower and copulate with him before she’s sure.
Every move a displaying male makes is designed to culminate in a single reproductive act. Females at the far opening of his bower must make a decision. Many of them repeatedly nibble on the bluish “paint” the male has masticated into a paste from pine needles and applied to the opening of his twig-tunnel of avian love.
It’s romance tinged with risks for the female. Read more – https://goo.gl/G3HCqP