Displaying Yellow-headed Blackbird
Welcome to the month of March everyone – for me a psychological barrier between the depths of winter and the promise of spring. It’s supposed to be almost 50 degrees today and that has me thinking of spring birds, warmer temperatures, liquid water and some actual greens in the landscape. By the Ides of March (only two weeks from now) male Yellow-headed Blackbirds will begin arriving in Utah and the females a week or two later. Almost immediately the males will begin their raucous calling as they compete for territories and later for females. This male was defending breeding territory in May. Males display two primary types of song spreads – the Symmetrical Song Spread and the Asymmetrical Song Spread. Each song spread is accompanied by a distinct song type. Here’s a link to one of them. In this sequence of images the male is displaying the Symmetrical Sound Spread where the bird spreads its wings to expose the white patches and the tail is lowered and spread. During this display he localizes with the song called the Accenting Song. Once a display begins it almost seems like the bird loses voluntary control of its actions and the display must be completed before it regains control (my unscientific observation). During part of this display the head is directed upward at 30-45 degrees. This behavior is often difficult for the bird to complete without losing its balance on the typically spindly perches they prefer. The whole thing is quite entertaining to watch. …