This video from the USA says about itself:
10 March 2011
A flock of Ring-necked ducks hung around the Palace Lagoon at the Palace of Fine Arts in San Francisco.
From Rare Birds in Spain, on Twitter:
27.2.2015 Aythya collaris. 1 male La Massona, PN AIguamolls Empordà, Girona.
Aythya collaris means ring-necked duck. They are rare in Europe, not so rare in their northern North American homeland.
Pingback: Rare blue-winged teal at Orkney islands | Dear Kitty. Some blog
Pingback: American killdeer plover in Spain | Dear Kitty. Some blog
Pingback: Ring-necked duck video | Dear Kitty. Some blog