Common Gray Moorhen

The adult common moorhen has a gray front, a brown back, a white patch on its tail, and white shoulder patches. It has long yellowish-green legs and a red bill with a yellow tip. It also has a bright red forehead shield. The nonbreeding bird has a dark gray head and the breeding bird has a black head. The young common moorhen has a light gray head, a white throat, and a brown bill and forehead shield.

http://www.epa.gov/region1/ge/thesite/restofriver/reports/final_era/B%2…...