Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Caprimulgiformes Trochilidae

Scientific Name: Thalurania watertonii
Species Authority: (Bourcier, 1847)
Common Name(s):
English Long-tailed Woodnymph
Taxonomic Source(s): 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. Lynx Edicions BirdLife International.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Benstead, P., Harding, M., Sharpe, C J, Symes, A., Williams, R.
This species has a moderately small and severely fragmented range within which is the population is suspected to be declining owing to habitat loss (del Hoyo et al. 1999). It is consequently classified as Near Threatened.

Previously published Red List assessments:
2008 Near Threatened (NT)
2004 Near Threatened (NT)
2000 Lower Risk/least concern (LR/lc)
1994 Lower Risk/least concern (LR/lc)
1988 Lower Risk/least concern (LR/lc)

Geographic Range [top]

Range Description: Thalurania watertonii is confined to eastern Pará (probably erroneous), Pernambuco, Alagoas, Sergipe and northern Bahia, north-eastern Brazil (Pacheco and Whitney 1995) where it is common but presumably declining due to habitat loss.

Countries occurrence:
Continuing decline in area of occupancy (AOO): Yes
Extreme fluctuations in area of occupancy (AOO): No
Estimated extent of occurrence (EOO) - km2: 34800
Continuing decline in extent of occurrence (EOO): Yes
Extreme fluctuations in extent of occurrence (EOO): No
Continuing decline in number of locations: Unknown
Extreme fluctuations in the number of locations: No
Upper elevation limit (metres): 700
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The global population size has not been quantified, but the species is described as common throughout its range (del Hoyo et al. 1999).
Current Population Trend: Unknown
Additional data:
Number of mature individuals: Unknown Continuing decline of mature individuals: Yes
Extreme fluctuations: No Population severely fragmented: Yes
Continuing decline in subpopulations: Unknown
Extreme fluctuations in subpopulations: No All individuals in one subpopulation: No

Habitat and Ecology [top]

Habitat and Ecology: It is restricted to lowland habitats such as coastal rainforest, cerrado, plantations and parks throughout its Atlantic forest range. It forages in the understorey and middle strata, usually on the periphery of vegetation on nectar and occasional invertebrates. Males defend territories against conspecific intruders and other hummingbirds. Breeding occurs between November and February.

Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes
Generation Length (years): 4.2
Movement patterns: Not a Migrant

Threats [top]

Major Threat(s): Widespread and continuing disappearance of lowland forest in north-eastern Brazil is likely to be causing declines, the Atlantic forests north of the Sao Francisco river having been drastically reduced, with less than 4% remaining by 1995. It seems able to accept man-made habitats as long as patches of forest or stands of scattered trees remain.

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
CITES Appendix II. It occurs in Monte Pascoal National Park and Pedra Talhada State Park.

Conservation Actions Proposed
Effectively protect and manage protected areas where the species occurs. Study its ecology and its ability to persist in degraded and fragmented habitats. Attempt to obtain an accurate estimate of its population size and trends.

Citation: BirdLife International. 2012. Thalurania watertonii. The IUCN Red List of Threatened Species 2012: e.T22687402A38157346. . Downloaded on 08 October 2015.
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