Data Zone
Taxonomic note
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
| 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 | not a migrant | Forest dependency | Low |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 2,520,000 | |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | medium | estimated | 0 | |
| Population trend | Unknown | not applicable | - | |
| 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 | - | - | - |
Population justification: The population of subspecies asuncionis is estimated to number 1,821 individuals on Sarigan alone, as well as occurring through the rest of the northern and central Northern Mariana Islands (to U.S.A.); subspecies saffordi has an estimated total population size of 63,120 individuals; subspecies kobayashii had an estimated total population size of 59,690 in 1991; subspecies kurodai is common, with a total population estimated to number 109,360 individuals; subspecies major has a total population estimated to number 165,440 individuals; subspecies dichromata has an estimated total population size of 358,070, and the nominate subspecies rubrata has a total population estimated to number 136,360 individuals. In total then the total population is estimated to number 850,000-900,000 individuals (the sum of individual estimates being 893,861).
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Guam (to USA) | N | Extinct | Yes | |||
| Micronesia, Federated States of | N | Extant | Yes | |||
| Northern Mariana Islands (to USA) | N | Extant | Yes | |||
| Palau | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Palau | Middle Ridge, Babeldaob |
| Palau | Western Ridge, Babeldaob |
| Palau | Ngerutechei, Babeldaob |
| Palau | Rock Islands |
| Palau | Peleliu |
| Northern Mariana Islands (to USA) | Rota |
| Northern Mariana Islands (to USA) | Aguiguan Island and Naftan Rock |
| Northern Mariana Islands (to USA) | Tinian Island |
| Northern Mariana Islands (to USA) | Northern Saipan |
| Northern Mariana Islands (to USA) | Topachau-Susupe-Kagman |
| Northern Mariana Islands (to USA) | Maug Islands |
| Northern Mariana Islands (to USA) | Asuncion Island |
| Northern Mariana Islands (to USA) | Alamagan Island |
| Northern Mariana Islands (to USA) | Guguan Island |
| Northern Mariana Islands (to USA) | Sarigan Island |
| Micronesia, Federated States of | Pohnpei Watershed Forest Reserve |
| Micronesia, Federated States of | Enipein Watershed |
| Micronesia, Federated States of | Southeast Pohnpei / Nan Madol |
| Micronesia, Federated States of | Pilapen Kepin River Watershed |
| Micronesia, Federated States of | Salapwuk |
| Micronesia, Federated States of | Wiya Swiftlet Cave |
| Micronesia, Federated States of | Yela River Watershed |
| Micronesia, Federated States of | Utwa-Walung Conservation Area |
| Micronesia, Federated States of | Mount Winipot / Tol South |
| Micronesia, Federated States of | Polle Island |
| Micronesia, Federated States of | Pata Island |
| Micronesia, Federated States of | Onei Island |
| Micronesia, Federated States of | Uman Island |
| Micronesia, Federated States of | South Weno Ridge |
| Micronesia, Federated States of | Yap Island |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
| Artificial/Terrestrial | Urban Areas | suitable | resident |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 800 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Myzomela rubratra. Downloaded from
http://www.birdlife.org on 22/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 22/03/2023.
