email a friend
printable version
NT
Sao Tome Bronze-naped Pigeon Columba malherbii

Justification
Although this species remains common in parts of its range and is tolerant of some habitat degradation, it is suspected to be undergoing a moderately rapid decline owing to hunting pressure, and has consequently been classified as Near Threatened. Better information on population size and trends may lead to a further change in status.

Taxonomic source(s)
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.

Distribution and population
Columba malherbii is endemic to the islands of Príncipe, São Tomé (São Tomé e Príncipe), and Annobón (Equatorial Guinea). The population size has not been estimated, but it remains widespread and reasonably common; however anecdotal evidence suggests it is becoming harder to find near populated areas and may be declining moderately rapidly owing to hunting pressure and capture as a cage bird.

Population justification
The global population size has not been quantified, but the species is reported to be very common on Principe and frequent to uncommon on Sao Tome (del Hoyo et al. 1997).

Trend justification
The species is suspected to be undergoing a moderately rapid decline owing to hunting pressure (R. F. de Lima in litt. 2011; M. Carvalho in litt. 2011).

Ecology
The species makes seasonal within-island movements, becoming very conspicuous in forest, savannah and coastal habitat during the breeding season (November-February). It tolerates, and may even prefer, some degraded habitats.

Threats
Hunting represents the primary threat to the species, which is considered a favourite quarry and is often sold in bars and at parties (M. B. Carvalho in litt. 2011, R. F. de Lima in litt. 2011). Live adults and juveniles are also taken into captivity during the breeding season for home breeding and sale (M. B. Carvalho in litt. 2011). Many young children hunt the species, and hunting pressure may be increasing (M. B. Carvalho in litt. 2011). The species's tolerance of degraded habitats makes it less vulnerable to habitat loss and degradation, but may make it more vulnerable to hunting as hunters can find the species without having to go into the forest interior (R. F. de Lima in litt. 2011).


Conservation Actions Underway
Primary forest is protected as a zona ecologica and in Obo Natural Park, although there is no law enforcement within these areas and the lack of data about the species's ecological requirements makes it difficult to assess the benefits of these areas. A new law providing for the gazetting of protected areas has been ratified. Conservation Actions Proposed
Research its population size, distribution, ecological requirements and key threats in order to produce conservation recommendations. Ensure designated protected areas are actively protected.

References
del Hoyo, J.; Elliott, A.; Sargatal, J. 1997. Handbook of the Birds of the World, vol. 4: Sandgrouse to Cuckoos. Lynx Edicions, Barcelona, Spain.

del Hoyo, J.; Elliott, A.; Sargatal, J. 1997. Handbook of the Birds of the World, vol. 4: Sandgrouse to Cuckoos. Lynx Edicions, Barcelona, Spain.

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Symes, A.

Contributors
de Lima, R., Rocha, R., Carvalho, M.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Columba malherbii. Downloaded from http://www.birdlife.org on 24/11/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 24/11/2014.

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 Near Threatened
Family Columbidae (Pigeons, Doves)
Species name author Verreaux & Verreaux, 1851
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 2,000 km2
Country endemic? No
Links to further information
- Additional Information on this species