AVIS-IBIS

Birds of Indian Subcontinent

Phenology of Western Olivaceous Warbler Hippolais opaca and Eastern Olivaceous Warbler Hippolais pallida reiseri on stopover sites in Mauritania

Publication Type:Journal Article
Year of Publication:2006
Authors:Salewski, V, Herremans, M
Journal:Ringing & Migration
Volume:23
Issue:1
Date Published:2006
ISBN Number:0307-8698
Keywords:Acrocephalidae, Hippolais, Hippolais opaca, Hippolais pallida, Iduna, Iduna opaca, Iduna pallida, Mauritania, Phylloscopidae, Phylloscopus, Phylloscopus griseolus, Western Sahara
Abstract:Due to the problems of identifying the recently?split Western Olivaceous Warbler Hippolais opaca and Eastern Olivaceous Warbler H pallida reiseri in the field, the migration phenology, passage routes and wintering areas of the two species remain unknown. Both species were mist?netted regularly during autumn and spring migration on Mauritania and the migration phenology of the species in the western Sahara is described here for the first time. Autumn migration of Western Olivaceous Warblers through central Mauritania lasts from early August to early October. Passage at the coast started later and occurred during a shorter time period. The species does not seem to winter in central Mauritania. During spring migration, Western Olivaceous Warblers occurred from early March to early May. No birds were mist?netted in spring at the coast although some were present. The Eastern Olivaceous Warblerwas mist?netted at the inland sites only. Only a few birds were mist?netted on autumn migration, which was between late August and early October. The species does not seem to winter in central Mauritania. During spring migration, Eastern Olivaceous Warblers were mist?netted from mid March until early May. There were no indications that the species breeds in central Mauritania.Due to the problems of identifying the recently?split Western Olivaceous Warbler Hippolais opaca and Eastern Olivaceous Warbler H pallida reiseri in the field, the migration phenology, passage routes and wintering areas of the two species remain unknown. Both species were mist?netted regularly during autumn and spring migration on Mauritania and the migration phenology of the species in the western Sahara is described here for the first time. Autumn migration of Western Olivaceous Warblers through central Mauritania lasts from early August to early October. Passage at the coast started later and occurred during a shorter time period. The species does not seem to winter in central Mauritania. During spring migration, Western Olivaceous Warblers occurred from early March to early May. No birds were mist?netted in spring at the coast although some were present. The Eastern Olivaceous Warblerwas mist?netted at the inland sites only. Only a few birds were mist?netted on autumn migration, which was between late August and early October. The species does not seem to winter in central Mauritania. During spring migration, Eastern Olivaceous Warblers were mist?netted from mid March until early May. There were no indications that the species breeds in central Mauritania.
URL:http://dx.doi.org/10.1080/03078698.2006.9674339
Short Title:Ringing & Migration
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith