Wood Duck x Greater Scaup

captive probable Wood Duck x Greater Scaup hybrid, Oost, Texel (Netherlands), 11th July 2013 - copyright Joern Lehmhus 

(photo ID: 2321) 

In the above photo you can see the dark speculum and upper wing coverts, the secondaries are slightly lighter trowards the base and the secondary tips are clear white as in Wood Duck.  Joern also tells us that a very faint greenish iridescence is sometimes visible on the upper wing.  The only Aythya species present were Greater Scaup and Ferruginous Duck.

captive probable Wood Duck x Greater Scaup hybrid (same bird as in photo ID 2321 above), Oost, Texel (Netherlands), 11th July 2013 - copyright Joern Lehmhus 

(photo ID: 2320)

captive probable Wood Duck x Greater Scaup hybrid (with Red-crested Pochards, Speckled Teal x Ferruginous Duck hybrid, Northern Shovelers, Gadwall and Hooded Merganser; same bird as in photo IDs 2320-2321 above), Oost, Texel (Netherlands), September 2010 - copyright Joern Lehmhus 

(photo IDs: 0706-0710)

When the last set of photos above were taken this bird did not have the pale grey tail feather that was present in February 2012, as seen in the photo below.

captive probable Wood Duck x Greater Scaup hybrid (same bird as in photo IDs 2320-2321 and 0706-0710 above), Oost, Texel (Netherlands), February 2012 - copyright Joern Lehmhus

(photo IDs: 0648-0652)

Wood Duck Aix sponsa
Greater Scaup Aythya marila