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Vireo bellii
– Near Threatened
Taxonomy
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Kingdom:
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ANIMALIA
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Phylum:
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CHORDATA
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Class:
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AVES
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Order:
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PASSERIFORMES
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Family:
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VIREONIDAE
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Scientific Name:
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Vireo bellii
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Species Authority:
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Audubon, 1844
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Common Name/s:
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Assessment Information
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Red List Category & Criteria:
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NT ver 3.1 (2001)
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Year Assessed:
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2004
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Assessor/s:
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BirdLife International
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Evaluator/s:
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Stattersfield, A. & Butchart, S. (BirdLife International Red List Authority)
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Justification:
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Nearly qualifies for listing as threatened under criteria A2bc+3bc.
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History:
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| 1988 | - | Lower Risk/least concern (BirdLife International 2004) |
| 1994 | - | Lower Risk/least concern (BirdLife International 2004) |
| 2000 | - | Lower Risk/least concern (BirdLife International 2000) |
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Geographic Range
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Range Description:
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Vireo bellii summers in central and southwestern USA and northern Mexico, where it frequents dense, low, shrubby vegetation and is well known and studied1. Its winter range extends from south Baja California along the west coast of Central America, through Mexico, El Salvador, Guatemala, Nicaragua and Honduras1. However, very little is known about its density, ecology or habitat use in this region. The species has shown a decline of 2.7% per year since 19664. Habitat loss and modifications, and, secondarily, rates of brood parasitism by Brown-headed Cowbirds (Molothrus ater), have caused reductions in breeding populations in south-west USA1. Trapping cowbirds can significantly reduce brood parasitism2, and is a standard management tool in one California study area3.
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Countries:
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Native:
El Salvador; Guatemala; Honduras; Mexico; Nicaragua; United States
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Habitat and Ecology
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System:
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Terrestrial
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List of Habitats:
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| 3.4 | Shrubland - Temperate |
| 3.5 | Shrubland - Subtropical/Tropical Dry |
| 3.6 | Shrubland - Subtropical/Tropical Moist |
| 3.7 | Shrubland - Subtropical/Tropical High Altitude |
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Threats
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List of Threats:
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| 1.1.1.3 | Habitat Loss/Degradation - Agriculture - Crops - Agro-industry farming (ongoing) |
| 1.1.4 | Habitat Loss/Degradation - Agriculture - Livestock (ongoing) |
| 1.3.3.1 | Habitat Loss/Degradation - Extraction - Wood - Small-scale subsistence (ongoing) |
| 1.4.2 | Habitat Loss/Degradation - Infrastructure development - Human settlement (ongoing) |
| 1.4.6 | Habitat Loss/Degradation - Infrastructure development - Dams (ongoing) |
| 6.2.1 | Pollution (affecting habitat and/or species) - Land pollution - Agriculture (ongoing) |
| 8.5 | Changes in native species dynamics - Pathogens/parasites (ongoing) |
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Conservation Actions
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List of Conservation Actions:
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| 5.1 | Species-based actions - Re-introductions (needed) |
| 5.5 | Species-based actions - Disease, pathogen, parasite management (needed) |
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Bibliography
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Bibliography:
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Bird Reference Citations. The numbers inserted in the text accounts above (usually in bold) refer to references. For further details on these references, click on the BirdLife International link above to go to the specific species account on the BirdLife web site. In some cases, particularly in the taxonomic notes, the references are cited using the author names. Details for these can be found on the BirdLife International web site at the following two places:
For References from A–L.
For References from M–Z. BirdLife International. 2000. Threatened Birds of the World. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, U.K. BirdLife International. 2004 Threatened Birds of the World 2004. CD-ROM. BirdLife International, Cambridge, U.K.
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