627. Prunella atrogularis

(627) Prunella atrogularis (Brandt).
THE BLACK-THROATED HEDGE-SPARROW.
Prunella atrogularis, Fauna B. I., Birds, 2nd ed. vol. ii, p. 194.
Until comparatively recently this species of Hedge-Sparrow was not known to breed in Tibet and it was thought to be confined to Central Asia—Altai, Turkestan and Dzungaria ; but in 1919 I had two nests sent me with skins of this bird, said to be the owners of the nest, and again, in 1922, two more, one with a skin and the other without. In the twenty-five or thirty years that I had collectors working for me in Tibet no other breeding specimens were ever obtained. Ludlow never met with it breeding and it was not collected on the Everest Expedition. At the same time it is common on migration from Afghanistan, to Sikkim and it is quite possible a few may stay to breed in Tibet. Macdonald was no ornithologist, but it seems unlikely that he could have got hold of wrong parents to what are obviously Prunella eggs of some kind.
All four of the nests sent me were made of coarse grass and fine grass-bents, with no mixture of moss or other materials, and all were densely lined with goats’ hair well matted in. According to Macdonald all four were placed within a few inches of the ground, effectively hidden, two in the small, thorny, Tibetan bush (Caragana), which grows everywhere, one in a rose-bush and one in brambles. They were taken on the 11th and 18th June and 12th and 20th July, all at over 14,000 feet, “above Yatung” and at Phari. Three nests contained four eggs each and the fourth nest three eggs only. They are, of course, just like the eggs of other Prunellas.
In Central Asia they lay as many as six eggs in a clutch but, otherwise, the nidification is said to be much as described above.
Thirty eggs average 19.1 x 14.1 mm. : maxima 20.4 x 14.5 and 19.0 x 14.7 mm. ; minima 17.4 x 13.4 mm.

BookTitle: 
The Nidification Of Birds Of The Indian Empire
Reference: 
Baker, Edward Charles Stuart. The nidification of birds of the Indian Empire. Vol. 2. 1933.
Title in Book: 
627. Prunella atrogularis
Spp Author: 
Brandt
Book Author: 
Edward Charles Stuart Baker
CatNo: 
627
Year: 
1933
Page No: 
168
Common name: 
Black Throated Hedge Sparrow
M_ID: 
30278
M_CN: 
Black-throated Accentor
M_SN: 
Prunella atrogularis
Volume: 
Vol. 2
id: 
13783

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