LC
Masked Duck Nomonyx dominicus



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2021 Least Concern
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency Low
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 26,000,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 16000-200000 poor suspected 2011
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 4.9 - - -

Population justification: Partners in Flight estimate the total population to number 200,000 mature individuals (Partners in Flight 2019, see also Panjabi et al. 2019). However, Wetlands International (2019) have placed the population at 25,000-100,000 individuals, roughly equivalent to 16,000-70,000 mature individuals. The species is poorly known, and given this uncertainty the extreme values are used and the population is placed in the range 16,000-200,000 mature individuals.

Trend justification: This species is tentatively suspected to be stable (per Partners in Flight 2019, Wetlands International 2019).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Antigua and Barbuda N Extant Yes
Argentina N Extant Yes
Bahamas V Extant
Barbados N Extant Yes
Belize N Extant Yes
Bolivia N Extant Yes
Bonaire, Sint Eustatius and Saba (to Netherlands) V Extant
Brazil N Extant Yes
Cayman Islands (to UK) V Extant
Colombia N Extant Yes
Costa Rica N Extant Yes
Cuba N Extant Yes
Curaçao (to Netherlands) V Extant
Dominica V Extant
Dominican Republic N Extant Yes
Ecuador N Extant Yes
El Salvador N Extant Yes
French Guiana N Extant Yes
Guadeloupe (to France) N Extant Yes
Guatemala N Extant Yes
Guyana N Extant Yes
Haiti N Extant Yes
Honduras N Extant Yes
Jamaica N Extant Yes
Martinique (to France) N Extant Yes
Mexico N Extant Yes
Nicaragua N Extant Yes
Panama N Extant Yes
Paraguay N Extant Yes
Peru N Extant Yes
Puerto Rico (to USA) N Extant Yes
St Kitts and Nevis V Extant
St Lucia N Extant Yes
Suriname N Extant Yes
Trinidad and Tobago N Extant Yes
Turks and Caicos Islands (to UK) V Extant
Uruguay N Extant Yes
USA N Extant Yes
Venezuela N Extant Yes
Virgin Islands (to USA) V Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Colombia Humedales de la Sabana de Bogotá
Puerto Rico (to USA) Laguna de Añasco
Barbados Bayfield Pond
Guadeloupe (to France) Barrage de Gaschet
Antigua and Barbuda Bethesda Dam
Puerto Rico (to USA) Caño Tiburones
St Lucia Point Sables
St Lucia Iyanola and Grande Anses, Esperance and Fond D'ors
Jamaica Black River Great Morass
Colombia Parque Nacional Natural Amacayacu
Colombia Reserva Natural Laguna de Sonso
Colombia Sumapaz Natural National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable non-breeding
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands major non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands major breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable non-breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable breeding
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) suitable non-breeding
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) suitable breeding
Altitude 0 - 1450 m Occasional altitudinal limits (max) 1500 m

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - Non-trivial Recent
Sport hunting/specimen collecting - - Non-trivial Recent

Recommended citation
BirdLife International (2022) Species factsheet: Nomonyx dominicus. Downloaded from http://www.birdlife.org on 08/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 08/08/2022.