Family Thornbills (Acanthizidae)

Least Concern

Dusky Gerygone (Gerygone tenebrosa)


Taxonomy

French: Gérygone blafarde German: Braunrückengerygone Spanish: Gerigón sombrío
Taxonomy:

Pseudogerygone tenebrosa

R. Hall

, 1901,

Fitzroy River, north Western Australia

.

Sister to G. flavolateralis (including citrina), based on DNA data#R. Races weakly differentiated. Proposed race whitlocki (Exmouth Gulf E to Cape Keraudren) included in christophori. Two subspecies recognized.

Subspecies and Distribution
  • G. t. tenebrosa (R. Hall, 1901) – coastal SW Kimberley Division of Western Australia, from Yampi Peninsula (mouth of Trent R) S to La Grange.
  • G. t. christophori Mathews, 1912 – Pilbara coast from Kamersham S to N Shark Bay (CW Western Australia).
  • Descriptive notes

    10–12·5 cm; c. 7·5 g. A distinctive pale-eyed medium-sized gerygone. Nominate race has dark loral stripe to eye, whitish supercilium to just behind eye (... read more

    Voice

    Song a “chewee-chew-chewee-cheweechee-chut-chee-chewee-chee” series, more repetitive... read more

    Habitat

    Mangrove woodlands and coastal thickets; attracted particularly to flowering mangroves. Alleged... read more

    Food and feeding

    Primarily insects, including lepidopterans, beetles (Coleoptera), bugs (Hemiptera), wasps (Hymenoptera) and flies (Diptera); spiders (... read more

    Breeding

    Poorly known. Recorded Sept–Jan, mainly in dry season. Nest a compact, tightly woven domed structure (much smaller than nest of G... read more

    Movements

    Resident, but poorly known; records from offshore islands and isolated mangrove patches suggest... read more

    Status and conservation

    Not globally threatened. Restricted-range species: present in West Australian Mangroves Secondary Area. Generally poorly known; seems fairly common in remote tropical and... read more

    Recommended citation

    Gregory, P. (2019). Dusky Gerygone (Gerygone tenebrosa). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/59815 on 17 February 2019).