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closeIUCN Red List Criteria
| Critically Endangered | B1ab(i,ii,iii,v) |
| Endangered | B1ab(i,ii,iii,v);C2a(ii) |
| Vulnerable | B1ab(i,ii,iii,v);C2a(i,ii);D1 |
IUCN Red List history
| Year | Category |
|---|---|
| 2012 | Critically Endangered |
| 2009 | Critically Endangered |
| 2008 | Critically Endangered |
| 2004 | Critically Endangered |
| 2000 | Critically Endangered |
| 1996 | Endangered |
| 1994 | Endangered |
| 1988 | Lower Risk/Least Concern |
Species attributes
| Migratory status | not a migrant | Forest dependency | High |
| Land mass type | continent |
Average mass | - |
Distribution
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 50 | medium |
| Number of locations | 1 | - |
| Fragmentation | - |
Population & trend
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 250-999 | poor | Estimated | 2000 |
| Population trend | Decreasing | poor | - | |
| Number of subpopulations | 1 | - | - | - |
| Largest subpopulation | 251-1000 | - | - | - |
| Generation length (yrs) | 4.2 | - | - | - |
| Population justification: The population is estimated to number 250-999 mature individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 375-1,499 individuals in total, rounded here to 350-1,500 individuals. | ||||
| Trend justification: During the 1990s, semi-deciduous forest in the species's range was rapidly cleared. However, illegal cultivation for the drug trade has rendered an assessment of habitat quality problematic recently. While new data are lacking, the species is suspected to be continuing to decline at a rate of 10-19% over ten years, owing to forest clearance. | ||||
Country/Territory distribution
| Country/Territory | Occurrence status | Extinct | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|
| Mexico | Native | No | Yes |
Habitats & altitude
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Altitude | 900 - 1800 m | Occasional altitudinal limits |
Threats & impact
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & Aquaculture | Annual & perennial non-timber crops / Scale Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
| Ongoing | Whole (>90%) | Slow, Significant Decline | Medium Impact: | ||||||
| |||||||||
| Agriculture & Aquaculture | Annual & perennial non-timber crops / Small-holder farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Whole (>90%) | Slow, Significant Decline | Medium Impact: | ||||||
| |||||||||
Recommended citation
BirdLife International (2013) Species factsheet: Lophornis brachylophus. Downloaded from
http://www.birdlife.org on 26/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 26/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
| Key facts | |
|---|---|
| Current IUCN Red List category | Critically Endangered |
| Family | Trochilidae (Hummingbirds) |
| Species name author | Moore, 1949 |
| Population size | 250-999 mature individuals |
| Population trend | Decreasing |
| Distribution size (breeding/resident) | 50 km2 |
| Country endemic? | Yes |
| Links to further information | |
| - Summary information on this species | |
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