Thornbills (Acanthizidae)

Western Gerygone (Gerygone fusca) - HBW 12, p. 598

French: Gérygone à queue blanche German: Weißschwanzgerygone Spanish: Gerigón Coliblanco
Other common names: Western/Fuscous/Inland/White-tailed Warbler

Taxonomy: Psilopus fuscus Gould, 1838, Swan River, Western Australia.
Probably forms a species group with G. levigaster and G. flavolateralis, and in past sometimes treated as conspecific with former. Races mungi and exsul intergrade in S Gulf of Carpentaria region; possible clinal variation within exsul, underparts becoming whiter and white markings narrower from S to N, but complicated by poorly understood movements into range of race mungi; exsul formerly included within nominate. Three subspecies recognized.

Subspecies and Distribution:

  • fusca (Gould, 1838) - SW Western Australia S from about Leeman (and extending N in non-breeding season to Pilbara and S Kimberley Division); also South Australia (S Eyre Peninsula).
  • mungi Mathews, 1912 - inland WC Australia, within area roughly bounded by Pilbara and C Northern Territory (Barkly Tableland) in N, by Simpson Desert and W Queensland border in E and by NW South Australia and Wiluna region of Western Australia in S.
  • exsul Mathews, 1912 - inland C & E Australia from Queensland (base of Cape York peninsula and W slopes of Great Dividing Range) S to W basin of Murray-Darling and C Victoria.