Monday, April 24, 2017

Spring Beaks


Day 193: One of the happiest moments in my year is when I hear the first "Churp?" of an Evening Grosbeak at the feeder. From that point on, I wait anxiously for the arrival of the flock and the time when the querulous "churping" of porch-parrots outside the window becomes almost constant. Yes, they have arrived and are consuming black-oil sunflower seeds as fast as those great green beaks can crack the shells.

During breeding season (i.e., spring), the beaks of both males and females turn a bright chartreuse. In courting his lady-of-the-moment, the male (right) effects a bobbing dance, sometimes fluttering the wings like a juvenile bird soliciting food. Nest-building is done largely by the female (left) who selects a site in the fork of a branch. Locally, the preferred nest-tree is Douglas Fir, although these birds nest may nest in deciduous trees as well. The female will produce 2-5 eggs (generally 3-4). Incubation is done solely by the female; the male will bring her food. Both parents tend the young who will be ready to fly about two weeks from hatching. During the months they are here, I keep a steady supply of sunflower seed in the feeders to assure the return of the flock next year.

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