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Information About

Black-cheeked Warbler




  Name Black-cheeked Warbler
  Regnum Animal ia
  Phylum Chordata
  Classis Aves
  Ordo Passeriformes
  Familia Parulidae
  Genus '' Basileuterus ''
  Species '''''B melanogenys'''''
  Binomial ''Basileuterus melanogenys''
  Binomial Authority Baird , 1865


The Black-cheeked Warbler (''Basileuterus melanogenys'') is a New World Warbler which is a resident breeding Bird endemic to the mountains of central and southern Costa Rica and western Panama .

It is normally found in Oak forests with a dense Bamboo understory from 2500 m altitude to the timberline, but occasionally occurs as low as 1600m. The breeding pair builds a bulky domed nest with a side entrance on a sloping bank or in a gully, and the female lays two white eggs.

The Black-cheeked Warbler is 13-13.5 cm long and weighs 13 g. It has a rufous crown, long white supercilia and black cheeks. The upperparts are dull olive, the breast is olive-grey, and the belly is yellow-white. The sexes are similar, but the young bird is browner on the upperparts, has a dull supercilium, a greyer breast, and shows two cinnamon wingbars.

Despite this species’ restricted range, it has three Subspecies .

  • ''B. m. melanogenys'', the nominate race described above, breeds in central and southern Costa Rica.

  • ''B. m. eximius'' is highly localised in a small area of western Panama, and is slightly whiter on the belly than ''melanogenys''.

  • ''B. m. bensoni'' is highly localised in a small area of west-central Panama, and is whiter below than ''eximius'', and a purer grey above.


The Black-cheeked Warbler primarily feeds on Insect s, Spider s and other small Invertebrate s, taken low in the undergrowth.

The call note of the Black-cheeked Warbler is a hard ''tsit'', and the male’s song is a lisping spluttered ''tsi tsi wee tsi tsi wu tsi wee''.


REFERENCES

  • Curson, Quinn and Beadle,''New World Warblers'' ISBN 0-7136-3932-6

  • Stiles and Skutch, ''A guide to the birds of Costa Rica'' ISBN 0-0814-9600-4