Belize Biodiversity Information System

   Wildlife Conservation Society

   Ministry of Natural Resources' Land Information Centre

   01/19/98



  NAME -                 Masked Duck

  FAMILY -               Anatidae
  SCIENTIFIC NAME -      Nomonyx dominicus

  SYNONYMS - Anas dominica - Linnaeus, 1766 and Oxyura dominica

  REFERENCES - 7 and 1

  National abundance, Conservation or Economic Status    Reference

  Resident, species present all year.                        2
  Of concern due to restricted habitat                       6
  Rare: low density, unlikely to be seen, few localities     6
  Of concern due to restricted habitat                       3
  U.S. Migratory Bird Treaty                                 4
  

  District                                                     Reference

  Belize                                                               5
  Cayo                                                                 9
  

  Administrative Unit                  Occurrence          Temporal    Reference

  Private land, see comments            Sighting             March            9
  

  

                                        
  

  Elevation        Reference

  201-400 m             9
  1-200 m               5
  

  1:50,000 Quadrangle                   Reference

  17 30' to 17 45'; 88 10' to 88 30'           5
  17 00' to 17 15'; 89 00' to 89 15'           9
  

  Holdridge Life Zone                   Reference

  Subtropical moist                            5
  

  General Distribution Comments

  9* Single bird, male in alternate plumage seen on a small pond between
     Cristo Rey and San Antonio, Cayo Dist. March 18, 1990.  First record for
     southern half of Belize.
  8* Occasional northern semideciduous moist forest.
  5* Belize City Christmas Bird Count Circle.
  2* Permanent resident, Rare in northern hardwood forest.

  References

  1  A.O.U. 1983. Checklist of North American Birds. 6th Ed.
  
  2  Wood, D.S.,R. C. Leberman, and D. Weyer. 1986. Checklist of Birds of
     Belize. Carnegie Museum of Natural History Special Publication 12.
  
  3  Miller, B.W. 1959. Bird Species of Concern. pp. 56-64. in Miller, B.W.,
     C.M. Miller. 1995. National Protected Areas System Plan for Belize,
     Vol. 3. Zoological Report 236 p.  NARMAP.
  
  4  Title 50 Code of Federal Regulations, Subchapter B., Part 10.13: List
     of Migratory Birds.  U.S. Government Printing Office: 1985 0-488-794.
     (Lists all species of migratory birds protected by the Migratory Bird
     Treaty Act (16 U.S.C. 703-711).
  
  5  Miller, B. W. 1997. Belize Christmas Bird Count Summary 1970-1995.
     Data from American Birds Vol. 28-50 including 1973-1996.
  
  6  Miller, B.W., C.M. Miller. 1997. Avian Risk Assessment for Belize,
     Species at Risk and of Conservation Concern.  Report to Programme for
     Belize/TNC Wings of America Program.
  
  7  A.O.U. 1997. Forty-first Supplement to the American Ornithologists'
     Union Check-list of North American Birds. The Auk. 114 (3):542-552.
  
  8  Garcia, J., S. Matola, M. Meadows, and C. Wright. 1994. A Checklist of
     the Birds of Belize. WWF-US. 35p.
  
  9  Howell, S.N.G., B.A. Dowell, D.A. James, R.A. Behrstock and C.S.
     Robbins. 1992. New and noteworthy bird records from Belize. Bulletin
     British Orinthological Club. 112:235-244.