- Dorst's Cisticola
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Dorst's Cisticola Cisticola guinea Scientific name definitions

Peter Ryan
Version: 1.0 — Published March 4, 2020
Text last updated May 10, 2018

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Field Identification

11–12 cm; 8–12 g. A small cisticola with dull rufous crown , plain or lightly mottled back and medium-long graduated tail. In breeding plumage has buffy face, creamy supraloral stripe and rufous-washed cheek; rufous-brown crown merging into grey-brown upperparts; uppertail-coverts reddish-brown; flight-feathers and greater upperwing-coverts dark brown with rufous-buff margins; tail grey-brown with indistinct subterminal dark band and narrow pale grey tips on all except central pair of feathers; creamy below, paler on throat and central belly, washed grey-brown on flanks, vent rich buffy; iris brown; bill black above, paler below; legs dull pink. Distinguished from very similar C. ruficeps by duller rufous crown not demaracted from brown back, buffy underparts, reduced spotting on undertail. Non-breeding plumage is dull brown above, mantle and back diffusely streaked or mottled dark brown, tail slightly longer and more rufous, underparts more buffy. Sexes alike. Juvenile undescribed; presumably similar to non-breeding adult but washed lemon-yellow below.

Systematics History

See C. ruficeps. Complicated taxonomy and nomenclature: when “C. ruficeps” (sensu lato) was found to consist of two species, on basis of highly distinctive vocalizations, the new form was mistakenly attributed to C. ruficeps mongalla, which was as a result raised to species level; vocalizations subsequently found not to apply to mongalla, and indeed not known from anywhere near the range of that race, so the new species was awarded a new name, “C. dorsti”; however, recent studies have now shown this taxon, with its distinctive vocalizations, to be synonymous with the form hitherto treated as “C. ruficeps guinea”; thus, “C. dorsti” is a junior synonym of “C. guinea” (1). Monotypic.

Subspecies

Monotypic.

Distribution

Sudan–Guinea savannas from Senegal E to N Cameroon and extreme SW Chad; possibly also NE Mali.

Habitat

Confined to Sudan-Guinea savanna biome; occurs in grassy understorey of dry woodland and savannas, also grassy thickets, cassava patches and fallow fields. In more mesic habitats than C. ruficeps, and at higher elevations (c. 850 m) in N Cameroon.

Movement

Little known; presumably mostly resident.

Diet and Foraging

Diet presumably mainly insects. Forages low down among grass tussocks.

Sounds and Vocal Behavior

Male song is a rather dry, metallic trill lasting 1–1·2 seconds (quite different from that of C. ruficeps); in aggressive encounters, trill rate slows and is followed by 4–6 more musical 2-note calls, “ti-t-r-r-r-r-r-r-r-r-r ti-shee ti-shee ti-shee ti-shee”. Also a piercing, descending “tseeep seeep seeep seeep”.

Breeding

Recorded in Aug. Presumably monogamous; territorial. Nest a ball with side entrance, built low down in grasses. One clutch contained 4 eggs; no information on incubation and nestling periods.
Data-deficient. Locally common in many areas. This species, rather than C. ruficeps, thought likely to be present in NE Mali; further study required.
Distribution of the Dorst's Cisticola - Range Map
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  • Year-round
  • Migration
  • Breeding
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Distribution of the Dorst's Cisticola

Recommended Citation

Ryan, P. (2020). Dorst's Cisticola (Cisticola guinea), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.dorcis1.01
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