Family Thornbills (Acanthizidae)

Least Concern

Yellow-bellied Gerygone (Gerygone chrysogaster)


Taxonomy

French: Gérygone à ventre jaune German: Gelbbauchgerygone Spanish: Gerigón ventrigualdo
Taxonomy:

Gerygone chrysogaster

G. R. Gray

, 1858,

Aru Islands

.

Sister to G. mouki#R. Race notata moderately distinctive in possessing a fairly bold buffy single wingbar (not shown in recent publications but confirmed in AMNH material); study of other distinguishing characters encouraged. Form leucothorax thought possibly an intergrade between dohertyi and notata, and one or both of first two subsumed into notata by some authors#R#R. Proposed species G. ruficauda, supposedly from NE Australia (“Thirteen Mile River”, in E Queensland), was based on incorrectly labelled specimens of present species discoloured (faded) by preservative spirit. Five subspecies recognized.

Subspecies and Distribution
  • G. c. neglecta Wallace, 1865 – N West Papuan Is (Waigeo, Batanta), in NW New Guinea.
  • G. c. notata Salvadori, 1878 – C & S West Papuan Is (Salawati and Misool) and NW New Guinea (Vogelkop).
  • G. c. dohertyi Rothschild & E. J. O. Hartert, 1903 – SW New Guinea (Onin Peninsula E to Triton Bay).
  • G. c. leucothorax Mayr, 1940 – lowlands of Geelvink Bay region (W New Guinea).
  • G. c. chrysogaster G. R. Gray, 1858 – Yapen I (in Geelvink Bay), N, S & SE New Guinea, and Aru Is.
  • Descriptive notes

    10 cm. Nominate race is brownish-olive above, upperwing and tail browner, greyer on cheek, with narrow pale supraloral stripe, thin pale eyering almost broken at sides; chin... read more

    Voice

    Song, one of characteristic sounds of New Guinea lowland rainforest but hard to pinpoint, a sweet,... read more

    Habitat

    Rainforest, secondary growth, monsoon forest and riparian formations, from sea-level to, rarely, c... read more

    Food and feeding

    Insectivorous, but no details of prey. Occurs singly, in pairs or in small groups up to five individuals. Keeps mainly in middle storey but... read more

    Breeding

    Recorded in both dry and wet seasons, Aug–Sept, Feb and May. Nests as pair; possibly an occasional co-operative breeder, as four... read more

    Movements

    Resident; some local wandering, as recorded rarely at 760 m in hill forest at Tabubil, in C New... read more

    Status and conservation

    Not globally threatened. Common in lowland rainforest over a huge area of New Guinea.

    Recommended citation

    Gregory, P. (2019). Yellow-bellied Gerygone (Gerygone chrysogaster). 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/59810 on 17 February 2019).