Greater Scaup (Aythya marila) in Anatidae (Ducks, Geese, and Waterfowl)

Photos by Bill Walker

Species Notes

From Charleston Slough, Feb 10, 1996 to Palo Alto Baylands Boat Launch, Mar 30, 2014 , we've seen Greater Scaup roughly 4 times a year at 33 different locations.
Sightings by Month

Species Map