Family New World Sparrows (Passerellidae)

Near Threatened

Baird's Junco (Junco bairdi)


Taxonomy

French: Junco de Baird German: Braunflankenammer Spanish: Junco de Baja California
Taxonomy:

Junco bairdi

Ridgway

, 1883,

Laguna, Baja California

.

Usually considered conspecific with J. phaeonotus, but differs in its notably paler plumage above and below (2); pale rufous-buff flanks vs undifferentiated from rest of underparts (2); greatly reduced black on face (at least 1); notably smaller size (effect size for male tail vs nominate –4.51, vs J. p. palliatus –4.93, score 2), although not in bill; pleasant tinkling and trilled warble, “strikingly different from mainland Yellow-eyed Juncos”#R#R, so that on published evidence#R the effect size for the number of unique notes is 13 (score 4) and that for repeats per syllable is 5.5 (score 3). Monotypic.

Distribution:

Cape district of S Baja California (W Mexico).

Descriptive notes

14–15 cm; male averages 17·7 g. Medium-sized sparrow, similar in general appearance to J. phaeonotus, with which formerly considered... read more

Voice

Song a pleasing, tinkling trilled warble, c. 1·5–2 seconds in duration; quite... read more

Habitat

Occurs in Cape Mts in semi-arid oak and mixed pine-oak woodlands at 1200–1900 m; occasionally... read more

Food and feeding

No quantitative data. Feeds on insects and other invertebrates, and seeds; most food obtained on ground.

Breeding

Little information. Nest an open cup made of dry grasses and rootlets and placed in shallow depression on ground, or low in tree or shrub.... read more

Movements

Resident, although some individuals thought to move to lower elevations in winter.

Status and conservation

Not globally threatened. Currently considered Near Threatened. Restricted-range species: confined to Baja California EBA. Thought to be common to fairly common at end of 20th... read more

Recommended citation

del Hoyo, J., Collar, N. & Marks, J.S. (2020). Baird's Junco (Junco bairdi). 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/1344150 on 22 February 2020).