930. Suya superciliaris superciliaris

(930) Suya superciliaris superciliaris Anderson.
Suya superciliaris superciliaris, Fauna B. I., Birds, 2nd ed. vol. ii, p. 524.
The White-browed Hill-Warbler is found from the Chindwin, Kachin and Bhamo Hills, through the hill-ranges of Central Burma and Karenni, to Tenasserim. To the East it has been recorded from the Shan States, Yunnan and China to Fokhien. K. Macdonald also found it breeding on Mount Victoria in the Southern Chin Hills, where he notes it as “common and breeding in May 1906.” Venning also found a nest, and J. P. Cook took many in Haka in the same province. Livesey found them to be very common in the Northern Shan States and Mackenzie took nests as far South as the Taok Plateau and Amherst.
They are essentially birds of open grass lands, and I can find no record of their breeding in or near forest.
The nests are placed, as usual, low down in tufts of grass or in small bushes, sometimes in forks or clusters of twigs and sometimes suspended or semi-suspended.
Harington gives two descriptions of these nests. First he writes (Journ. Bomb. Nat. Hist. Soc. vol. xviii, p. 687, 1908) :—“This year at Thandoung I found four nests of this bird, one with 4 eggs, one with 3 and one with young birds. The one with young birds and an empty one were in small shrubs about 4 feet from the ground. The nests were small untidy grass ovals with a side-entrance and very like an unfinished Munia’s nest and quite unlike Suyas’ nests found by me in the Shan States, which were beautifully woven, cylindrical in shape, made from the flowering heads of grass.”
Writing again of this bird in the Bhamo Hills he says (ibid. vol. xix, p. 124, 1909) :— “Found several nests. All were cylindrical in shape with a wide entrance near the top, made of woven grass with a little moss in the foundations ; very unlike the nests of the species which I found at Thandoung.”
The breeding season is principally in April and May, the greater number of eggs being laid in the former month, while Harington took one nest in Bhamo as early as the 23rd March. On the other hand, Mackenzie found some nests with eggs in June, and Cook obtained one as late as the 18th August.
The eggs number only three or four in a clutch, though Mackenzie notes that Robinson once took five.
The eggs cannot be distinguished from those of Suya atrogularis and have just as wide a range of variation and, like those of that species, the predominating type is that with a greenish ground.
Eighty eggs average 17.0 x 12.65 mm. : maxima 18.6 x 12.5 and 18.4 x 13.6 mm. ; minima 15.5 x 12.2 and 18.0 x 11.9 mm.
Since I have been able to examine the fine series of eggs of this Suya collected by Mackenzie and Hopwood, I must withdraw my remark made in the ‘Fauna’ that these eggs as a rule were duller than those of the other Suyas. Mackenzie had many strikingly beautiful clutches in his series.

The Nidification Of Birds Of The Indian Empire
Baker, Edward Charles Stuart. The nidification of birds of the Indian Empire. Vol. 2. 1933.
Title in Book: 
930. Suya superciliaris superciliaris
Spp Author: 
Book Author: 
Edward Charles Stuart Baker
Page No: 
Common name: 
Andersons Hill Warbler
Prinia superciliaris superciliaris
Vol. 2

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