Family Thrushes (Turdidae)

Least Concern

Varied Thrush (Ixoreus naevius)


Taxonomy

French: Grive à collier German: Halsbanddrossel Spanish: Zorzal pinto
Taxonomy:

Turdus naevius

J. F. Gmelin

, 1789,

Nootka Sound, Vancouver Island, British Columbia, Canada

.

Geographical variation slight and mostly clinal; carlottae and godfreii possibly not tenable. Four subspecies recognized.

Subspecies and Distribution
  • I. n. meruloides (Swainson, 1832) – from NC Alaska E to NW Canada; non-breeding also SW USA and extreme NW Mexico (N Baja California).
  • I. n. naevius (J. F. Gmelin, 1789) – SE Alaska (including Kodiak I) S to NW California; non-breeding also S to SW California.
  • I. n. carlottae (A. R. Phillips, 1991) – Queen Charlotte Is, in British Columbia (SW Canada).
  • I. n. godfreii (A. R. Phillips, 1991) – interior British Columbia S to interior NW USA (E Washington, NE Oregon, N Idaho and NW Montana).
  • Descriptive notes

    21·5–24 cm; 65–100 g. Slaty and orange plumage, in complex pattern. Male nominate race is mainly slate-grey above (blue-tinged when breeding), with orange... read more

    Voice

    Song, mainly Mar–Aug, chiefly Apr–Jun (occasionally in winter), mostly early morning... read more

    Habitat

    Dark, wet conifer forest with shaded mossy floor, with various combinations of dominant trees such... read more

    Food and feeding

    Mainly terrestrial invertebrates in spring and summer; mainly fruit, berries and mast in autumn and winter. Rarely, cultivated fruit and... read more

    Breeding

    Apr–Aug; probably double-brooded. Territory probably c. 7 ha; evidence suggests ­inter-nest distance not closer than 300 m. Nest... read more

    Movements

    Poorly studied. In S of range variable from year to year, with erratic irruptive pattern, and some... read more

    Status and conservation

    Not globally threatened (Least Concern). Fairly common. Abundance tends to be cyclical, with peaks every 2–5 years (possibly correlated with cycles in abundance of... read more

    Recommended citation

    Collar, N. (2019). Varied Thrush (Ixoreus naevius). 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/58359 on 8 December 2019).