Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
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#.
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 | Low |
Land mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 33,400,000 | medium |
Extent of Occurrence non-breeding (km2) | 30,500,000 | medium |
Number of locations | - | |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | poor | estimated | 2009 | |
Population trend | Decreasing | 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) | 6.6 | - | - | - |
Trend justification: The overall population trend is decreasing, although some populations have unknown trends (Wetlands International 2006). This species has undergone a small or statistically insignificant decrease over the last 40 years in North America (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 |
---|---|---|---|---|---|---|
Anguilla (to UK) | N | Extant | ||||
Antigua and Barbuda | N | Extant | ||||
Argentina | N | Extant | ||||
Aruba (to Netherlands) | N | Extant | ||||
Bahamas | N | Extant | ||||
Barbados | N | Extant | ||||
Belize | N | Extant | Yes | |||
Bermuda (to UK) | N | Extant | Yes | |||
Bolivia | N | Extant | ||||
Bonaire, Sint Eustatius and Saba (to Netherlands) | N | Extant | ||||
Brazil | N | Extant | ||||
Canada | N | Extant | ||||
Cayman Islands (to UK) | N | Extant | ||||
Chile | N | Extant | ||||
Colombia | N | Extant | ||||
Costa Rica | N | Extant | Yes | |||
Cuba | N | Extant | ||||
Dominica | N | Extant | ||||
Dominican Republic | N | Extant | ||||
Ecuador | N | Extant | ||||
El Salvador | N | Extant | ||||
French Guiana | N | Extant | ||||
Greenland (to Denmark) | V | Extant | ||||
Grenada | N | Extant | ||||
Guadeloupe (to France) | N | Extant | ||||
Guatemala | N | Extant | ||||
Guyana | N | Extant | ||||
Haiti | N | Extant | ||||
Honduras | N | Extant | ||||
Jamaica | N | Extant | Yes | |||
Martinique (to France) | N | Extant | ||||
Mexico | N | Extant | ||||
Montserrat (to UK) | N | Extant | ||||
Nicaragua | N | Extant | ||||
Panama | N | Extant | ||||
Paraguay | N | Extant | ||||
Peru | N | Extant | ||||
Portugal | V | Extant | ||||
Puerto Rico (to USA) | N | Extant | Yes | |||
Sint Maarten (to Netherlands) | N | Extant | ||||
South Africa | V | Extant | ||||
St Barthelemy (to France) | N | Extant | ||||
St Kitts and Nevis | N | Extant | ||||
St Lucia | N | Extant | ||||
St Martin (to France) | N | Extant | ||||
St Pierre and Miquelon (to France) | V | Extant | Yes | |||
St Vincent and the Grenadines | N | Extant | ||||
Suriname | N | Extant | ||||
Trinidad and Tobago | N | Extant | ||||
Turks and Caicos Islands (to UK) | N | Extant | ||||
Uruguay | V | Extant | ||||
USA | N | Extant | Yes | |||
Venezuela | N | Extant | ||||
Virgin Islands (to UK) | N | Extant | Yes | |||
Virgin Islands (to USA) | N | Extant | Yes |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | breeding |
Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | non-breeding |
Marine Intertidal | Salt Marshes (Emergent Grasses) | suitable | breeding |
Marine Intertidal | Salt Marshes (Emergent Grasses) | suitable | non-breeding |
Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | major | breeding |
Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | major | non-breeding |
Altitude | 0 - 3750 m | Occasional altitudinal limits |
Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
---|---|---|---|---|---|---|
Pets/display animals, horticulture | - | - | International | Non-trivial | Recent |
Recommended citation
BirdLife International (2022) Species factsheet: Egretta caerulea. Downloaded from
http://www.birdlife.org on 03/07/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 03/07/2022.