231. Acredula calva

231. MONGOLIAN LONG-TAILED TITMOUSE.
ACREDULA CALVA.
Acredula calva, Pleske, Prjevalsky's Reisen, ii. Vogel, p. 150, Taf. vii. figs. 1, 2, (1894).
Male ad. (Kan-su). Resembles A. tephronota, but has a broad frontal band, the cheeks to above the eye and the ear-coverts pure white ; the crown and nape deep black with a small central patch white, sometimes black with but a faint trace of the central white patch. Culmen 0.3, wing 2.5, tail 3.43, tarsus 0.65 inch. It approaches nearest to A. glaucogularis, of which it is a northern form, differing in having the frontal band much broader, pure white instead of ochreous, as are also the cheeks and patch on the. crown, the under parts whiter and the tail much longer. Sexes alike. The young bird resembles that of A. glaucogularis (and has been described as distinct under the name A. vinacea (Verr.) but has a longer tail.
Hab. Kan-su and the valley of the Chuan-che in Mongolia.
It inhabits the lower portion of the forest zone, and does not range in the mountains higher than about 9,000 feet. It prefers the deciduous woods in the river valleys, and is also found in the willow and tamarisk thickets on the river banks. Its nest and eggs are as yet unknown, but Prjevalsky saw fledged young on the Tschurmyn river on the 29th April.

BookTitle: 
A Manual Of Palaearctic Birds
Reference: 
Dresser, Henry Eeles. A Manual of Palaearctic Birds. Vol. 1. 1902.
Title in Book: 
231. Acredula calva
Book Author: 
H. E. Dresser
CatNo: 
231
Year: 
1902
Page No: 
161
Common name: 
Mongolian Long Tailed Titmouse
M_ID: 
22878
M_CN: 
Long-tailed Tit
M_SN: 
Aegithalos caudatus
Volume: 
Vol. 1
id: 
10555

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