| ♂ Spring | ♂ Transition | ♂ Winter | ♀ Spring | ♀ Winter |   
| Imm.♂Front | Imm.♂Side | Imm.♂Back | Imm.♀Front | Imm.♀Side | Imm.♀Back | Flying | Act.1 | Act.2 | Act.3 | Act.4 |   

  
  Long-tailed Duck
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 31 Dec 2014
   		 by Paul Higgins
 ŠPaul Higgins
  Long-tailed Duck
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 31 Dec 2014
   		 by Paul Higgins
 ŠPaul Higgins
  Long-tailed Duck (Oldsquaw)
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 11 Jan 2009
   		 by Paul Higgins
 ŠPaul Higgins
  Long-tailed Duck (Oldsquaw)
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 19 Dec 2007
   		 by Paul Higgins
 ŠPaul Higgins
  Long-tailed Duck (Oldsquaw)
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 11 Jan 2009
   		 by Paul Higgins
 ŠPaul Higgins
  Long-tailed Duck (Oldsquaw)
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 19 Dec 2007
   		 by Paul Higgins
 ŠPaul Higgins
  Long-tailed Duck (Oldsquaw)
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 19 Dec 2007
   		 by Paul Higgins
 ŠPaul Higgins
  Long-tailed Duck (Oldsquaw)
  Clangula hyemalis 		 Winter Male
 Antelope Island Causeway
 Davis County
 11 Jan 2009
   		 by Paul Higgins
 ŠPaul Higgins