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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
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 |
Migratory status | full migrant | Forest dependency | Does not normally occur in forest |
Land mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 32,900,000 | medium |
Extent of Occurrence non-breeding (km2) | 29,500,000 | medium |
Number of locations | - | |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | poor | estimated | 2009 | |
Population trend | Increasing | 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) | 6.7 | - | - | - |
Population justification: The population is estimated to number 1,200,000 individuals.
Trend justification: The overall trend is increasing, although some populations may be stable (Wetlands International 2006). This species has undergone a large and statistically significant increase over the last 40 years in North America (4300% increase over 40 years, equating to a 157% increase per decade; data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007) Note, however, that these surveys cover less than 50% of the species's range in North America.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Argentina | N | Extant | ||||
Aruba (to Netherlands) | N | Extant | ||||
Bolivia | N | Extant | ||||
Bonaire, Sint Eustatius and Saba (to Netherlands) | N | Extant | ||||
Brazil | N | Extant | ||||
Canada | N | Extant | Yes | |||
Chile | N | Extant | ||||
Colombia | N | Extant | ||||
Costa Rica | N | Extant | Yes | |||
Curaçao (to Netherlands) | N | Extant | ||||
El Salvador | N | Extant | ||||
Guatemala | N | Extant | ||||
Honduras | N | Extant | ||||
Mexico | N | Extant | ||||
Nicaragua | N | Extant | ||||
Paraguay | N | Extant | ||||
Peru | N | Extant | ||||
Sint Maarten (to Netherlands) | N | Extant | ||||
Uruguay | N | Extant | Yes | |||
USA | N | Extant | Yes | |||
Venezuela | N | Extant |
Country/Territory | IBA Name |
---|---|
Canada | Pakowki Lake |
Argentina | Reserva de Uso Múltiple Bañados del Río Dulce y Laguna Mar Chiquita |
Paraguay | Parque Nacional Tinfunqué - Estero Patiño |
Brazil | Várzea do Canal São Gonçalo |
USA | Farmington Bay UT04 |
USA | Ogden Bay UT03 |
USA | Bear Lake National Wildlife Refuge |
USA | Bear River Bay UT02 |
USA | Grays Lake National Wildlife Refuge |
USA | Market Lake Wildlife Management Area |
USA | Mud Lake Wildlife Management Area |
USA | Oxford Slough |
USA | Coastal Prairie |
USA | Cutler Reservoir and Marsh UT08 |
Brazil | Banhado do Taim |
Mexico | Lago de Chapala |
Mexico | Geotérmica Cerro Prieto |
Mexico | Presa Laguna de Zumpango |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | major | breeding |
Altitude | 0 - 2500 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Plegadis chihi. Downloaded from
http://www.birdlife.org on 30/01/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 30/01/2023.