Definitions

Acrocephalus atyphus

Acrocephalus

The Acrocephalus warblers are small, insectivorous passerine birds belonging to the genus Acrocephalus. Formerly in the paraphyletic Old World warbler assemblage, they are now separated as the namesake of the marsh- and tree-warbler family Acrocephalidae. They are sometimes called marsh-warblers or reed-warblers, but this invites confusion with Marsh Warbler and Reed Warbler proper, especially in North America where it is common to use lower case for bird species.

These are rather drab brownish warblers usually associated with marshes or other wetlands. Some are streaked, others plain. Many species are migratory.

Many species have a flat head profile, which gives rise to the group's scientific name.

Species breeding in temperate regions are strongly migratory.

The most enigmatic species of the genus, the Large-billed Reed-warbler (Acrocephalus orinus), was rediscovered in Thailand on March, 2006. It was only found once before, in 1867.

List of species in taxonomic order

Fragmentary fossil remains from the Late Miocene (about 11 mya) of Rudabánya (NE Hungary) show some apomorphies typical of this genus (Bernor et al. 2002). Given its rather early age (most Passerida genera are not known until the Pliocene), it is not too certain that it is correctly placed here, but it is highly likely to belong to the Acrocephalidae at the least.

Notes

References

  • Baker, Warblers of Europe Asia and North Africa ISBN 0-7136-3971-7
  • Barlow, Wacher and Disley, Birds of The Gambia ISBN 1-873403-32-1
  • Del Hoyo, J.; Elliot, A. & Christie D. (editors). (2006). Handbook of the Birds of the World. Volume 11: Old World Flycatchers to Old World Warblers. Lynx Edicions. ISBN 849655306X.
  • Grimmett, Inskipp and Inskipp, Birds of India ISBN 0-691-04910-6
  • King, Woodcock and Dickinson,Birds of South-East Asia, ISBN 0 00 219206 3
  • Mullarney, Svensson, Zetterstrom and Grant, Collins Bird Guide ISBN 0-00-219728-6
  • Sinclair, I.; Hockey, P. & Tarboton, W. SASOL Birds of Southern Africa (Struik 2002) ISBN 1-86872-721-1

External links

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