Overview

Distribution

Range Description

Zaratornis stresemanni is patchily distributed in the Cordillera Occidental of the Andes in Peru (La Libertad, Ancash, Lima and Ayacucho), with most records on the west slope. It has been observed at Tayabamba, La Libertad, in the Cordillera Central, where it may be resident, seasonal or vagrant. A recent observation at El Molino, also in La Libertad, suggests its range may be greater than previously thought (F. Angulo Pratolongo in litt. 2012). It is common north of Oyn, with an estimated 500 birds in this district (Fjelds and Kessler 1996); in the Cordillera Huayhuash area (Maynard and Waterton 1998), and in the upper Santa Eulalia Valley, where it numbers upwards of 250 birds (Maynard and Waterton 1998, G. Servat in litt. 1999). It is also fairly common in parts of the ro Caete drainage, Lima (Fjelds and Kessler 1996, Maynard and Waterton 1998, G. Servat in litt. 1999). In 1992, the population was estimated at c.3,000 individuals; actual numbers are probably between 1,500 and 6,000.

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Range

Andes of w Peru (La Libertad to Ayacucho).
  • Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
It mainly inhabits Polylepis-Gynoxys woodland at elevations of 3,800-4,400 m (Clements and Shany 2001, Schulenberg et al. 2007), but, in the dry season (between August and November), occurs to 2,700 m in mixed woodland and casually to 2,000 m. These seasonal movements may mean it is only able to maintain high populations in valleys with a continuum of oligothermic to mesothermic forest (J. Fjelds in litt. 1999, 2007). It apparently feeds primarily on two genera of mistletoe, for which it is the main seed-dispersal agent. Nest-building has been recorded in March, and nests with eggs and young have been found in May.


Systems
  • Terrestrial
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Source: IUCN

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
C2a(i)

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s
Fjelds, J., Servat, G., Valqui, T. & Angulo Pratolongo, F.

Justification
This species has a small population, which is severely fragmented and continuing to decline owing to loss and degradation of habitat. For these reasons, it is listed as Vulnerable.


History
  • Vulnerable (VU)
  • Vulnerable (VU)
  • Vulnerable (VU)
  • Vulnerable (VU)
  • Vulnerable (VU)
  • Vulnerable (VU)
  • Threatened (T)