Grauer's Swamp-Warbler (Bradypterus graueri)

Other Names (World)
Grauer's Swamp-Warbler, Grauer's Scrub-Warbler, Grauer's Warbler, Grauer's Bush-Warbler, Grauer's Rush-Warbler, Grauer's Swamp Warbler

Family
Locustellidae (Grasshopper-warblers And Grassbirds)

Size
16 cm

First Described (Guide)
Neumann, 1908

Habitat
Montane marshes, usually dominated by grass or sedge. From 1,950 - 2,600 m, occasionally to 2,750 m.

Range (Guide)

Burundi (B) (NB), Congo [The Democratic Republic of the] (B) (NB), Rwanda (B) (NB), Uganda (B) (NB).

Fragmented in central Africa: eastern DRCongo (highlands west of L Edward, highlands west of L Kivu, Kahuzi swamp), south-western Uganda (Echuya Forest Reserve, Bwindi-Impenetrable Forest), Rwanda (Rugezi swamp, Virunga volcanoes, Nyungwe Forest) and northern Burundi.

Population
Estimated population is 20,000 - 49,999 (2010) and decreasing.

Status EN
Habitat destruction and degradation through encroached by agriculture, drainage of swamps, are the main threats.

For more information see BirdLife International Species Factsheet.

Food
Small beetles, caterpillars, spiders and small seeds.

Voice
A fast trill, preceded (and sometimes followed) by a few loud 'chup' notes.

Xeno-Canto Sound Files (more (3)...)

Grauer's Swamp Warbler (Bradypterus graueri) [XC239708]
by Peter Boesman from Mubwindi trail, Ruhija, Bwindi Impenetrable Forest, Uganda (call, song)

Grauer's Swamp Warbler (Bradypterus graueri) [XC239271]
by id from Mubwindi trail, Ruhija, Bwindi Impenetrable Forest, Uganda (song)

Nest
Small, cup-shaped composed of sedges, located in foliage 35 cm above the ground.

Subspecies
No subspecies.

Forms a superspecies with Dja River Swamp-Warbler (Bradypterus grandis). These two, together with Little Rush-warbler (Bradypterus baboecala) and White-winged Swamp-Warbler (Bradypterus carpalis), make up a group of four swamp-dwelling Afrotropical species.

Similar Species
White-winged Swamp-Warbler (Bradypterus carpalis) which has white in wings and pale underparts. Little Rush-warbler (Bradypterus baboecala) which is smaller and paler. However, these species rarely, if ever, share the same marshes.

References
See References.

Files:

More Information

BirdLife International

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BirdLife International Species Factsheet.

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