Aythya Collaris in San Mateo Co., California
Aythya collaris in San Mateo Co., California.
The recorded occurrences of this duck in California are scarce enough to make new stations worthy of publication. An adult male was shot on the summit of the ridge north of Black Mountain (Monte Bello), about nine miles west of Stanford University, by Mr. Ernest Dudley, Nov. 26, 1903. There is yet little of the chestnut collar present.