Eurasian wigeons Anas penelope were abundant...
Eurasian teals or Common teals Anas crecca were even more abundant...
And among these there was an uncommon teal, which ended up in our captures: a 2nd cy male Green-winged teal Anas carolinensis, a North American species.
A single Common pochard Aythya ferina.
Perhaps the biggest surprise was the presence of a sleepy female Lesser Scaup Aythya affinis, another North American species and the second individual to show up at the pateira. We all remember this one, of course: http://btoringing.blogspot.pt/2014/11/portuguese-ringed-lesser-scaup-in-wales.html