Cocoa Woodcreeper


Cocoa Woodcreeper
Cocoa Woodcreeper
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Furnariidae
Genus: Xiphorhynchus
Species: X. susurrans
Binomial name
Xiphorhynchus susurrans
(Jardine, 1847)
Subspecies

see text

Synonyms
  • Dendrocolaptes susurrans
    Jardine, 1847
  • Xiphorhynchus guttatus (partim)

The Cocoa Woodcreeper (Xiphorhynchus susurrans) is a passerine bird which breeds in tropical Central and South America in Trinidad, Tobago, northern Colombia and northern Venezuela. It was formerly considered a subspecies of the Buff-throated Woodcreeper (X. guttatus).

It is typically 23 cm long, and weighs 37 g. The head and neck are buff-streaked dark brown, the upper back is liver-brown, and the rest of the upperparts, wings and tail are rufous. The underparts are olive-brown with buff streaks on the breast. The bill is long, black, slightly decurved, and hooked at the tip. The normal call is a loud kew-kew-kew-kew.

This woodcreeper is a common and widespread bird of forests and cultivated land with trees. It builds a bark-lined nest in a tree hole or hollow stump and lays two white eggs. The Cocoa Woodcreeper is an insectivore which feeds on ants and other insects and spiders. It feeds low in trees or on the ground, usually alone, but groups of up to a dozen birds will follow columns of army ants.

Systematics

The Cocoa Woodcreeper was formerly included in the larger Buff-throated Woodcreeper, X. guttatus but has been recognized as specifically distinct. Eight subspecies are normally recognized, falling into two groups. It is not quite clear how these are related to each other and to the Buff-throated Woodcreeper.

Subspecies

  • "susurrans" group
    • X. s. susurrans (Jardine, 1847) - Trinidad Cocoa Woodcreeper. Trinidad and Tobago, sometimes straying to the mainland.
    • X. s. jardinei (Dalmas, 1900) - Eastern Cocoa Woodcreeper. NE Venezuela.
    • X. s. margaritae Phelps, Sr. & Phelps, Jr., 1949 - Margarita Cocoa Woodcreeper. Isla Margarita.
  • "nanus" group
    • X. s. nanus (Lawrence, 1863) - Southern Lawrence's/Cocoa Woodcreeper. Coastward areas of E Panama south to Tolima Department, Colombia, and east to Miranda, Venezuela.
    • X. s. costaricensis (Ridgway, 1888) - Central Lawrence's/Cocoa Woodcreeper. Coastward areas from SE Honduras to W Panama.
    • X. s. confinis (Bangs, 1903) - Northern Lawrence's/Cocoa Woodcreeper. Caribbean slope of E Guatemala and N Honduras.
    • X. s. rosenbergi Bangs, 1910 - Cauca Lawrence's/Cocoa Woodcreeper. Upper Cauca Valley, Colombia
    • X. s. marginatus Griscom, 1927 - South Panamanian Lawrence's/Cocoa Woodcreeper. Pacific slope of C Panama.

References

  • ffrench, Richard (1991). A Guide to the Birds of Trinidad and Tobago (2nd edition ed.). Comstock Publishing. ISBN 0-8014-9792-2. 
  • Hilty, Steven L (2003). Birds of Venezuela. London: Christopher Helm. ISBN 0-7136-6418-5. 
  • Remsen, J. Van (2003): 33. Cocoa Woodcreeper. In: del Hoyo, Josep; Elliott, Andrew & Sargatal, Jordi (editors): Handbook of Birds of the World, Volume 6: Broadbills to Tapaculos: 430-431, plate 35. Lynx Edicions, Barcelona. ISBN 84-87334-50-4

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