Male bowerbirds are birds that build bowers, structures designed to attract females and used for mating. The bowers are not nests, though they are elaborately constructed of twigs. Various types of bowerbirds build different shapes and sizes of bowers and collect different items to adorn the area around the bower. The male satin bowerbird, which is a shiny blue-black, builds a bower that is an arched tunnel, and he collects only blue items to attract the olive and yellow-colored female. (If you’re in their territory, don’t set down anything blue that you don’t want to lose. They’re adept thieves.)
I had read about the satin bowerbird long before I saw one, and saw one long before I heard one. However, I finally heard what is often described as the “starter motor call” on my second trip to Australia. The satin bower bird uses this odd call to woo the lady bowerbird he hopes to win. While I’m sure it must have some appeal for the lady bowerbird, I find it highly amusing. The video below shows a few of the blue items a satin bowerbird has collected, around the lacy bower. Then, when the female appears, you get to find out how the mating call got its name.