This Yellow-headed Blackbird Xanthocephalus santhocephalus is striking bird. These were photographed on Chrystalaire Golf Course, Llyano, CA during spring migration in mid May. A marsh was loaded with several dozen birds. Those with erect throat feathers (0375, 9788) were in the middle of their raucous wail characterized by Sibley as “like a chain saw.” The male has a bright yellow bib, head and crown on a black body.
The female also has a yellow bib but less extensive than in the male. The only yellow on the head is on the malar areas and above the eyes. The body is brown instead of black.