1306. Dicaeum concolor olivaceum

(1306) Dicaeum concolor olivaceum Walden.
Dicoeum minullum olivaceum, Fauna B. I., Birds, 2nd ed, vol. iii, p. 430.
Dicoeum concolor olivaceum, ibid. vol. viii, p. 667.
Of all the Plain-coloured Flower-peckers this race has the widest range. In the Himalayas it extends from Nepal and Sikkim tothe Kachin Hills and Shan States and from the latter, in the hill-ranges South to the whole of the Malay States. East it occurs in Yunnan, Siam, Annam and South China.
This Flower-pecker is exceedingly common in Assam and in the Chin Hills from the level of the plains up to about 6,000 feet, possibly also breeding in the plains themselves but most commonly between 1,500 to 3,000 feet. It frequents the outskirts of forest or wide glades and the banks of streams in forest, open cultivated land, scrub-jungle and secondary growth, but where there are orange groves and fruit-gardens seems to prefer these to any other places to nest in. The height at which the nest is built varies very greatly. I have found them on quite small plants growing among weeds, nettles and briars, on high bushes and, most often, high up in big trees, sometimes over 40 feet from the ground and generally over 20.
The nest is exactly the same as that made by other Flower-peckers of the genus Dicoeum. Perhaps, of all of them, this bird makes the whitest nest, composed more exclusively of the down of Bombax malabarica, with less other material to bind it together. It is very tiny, sometimes measuring no more than 3 inches high by 2 inches broad.
I have never seen nests like the moss-and-grass affair described by Miss Cockburn, nor have I seen any which in the least reminded me of Piprisoma nests, as has been noted by other observers.
The breeding season in Assam is mainly in May and June, but I have taken eggs from the 12th March up to the 30th August, and many birds must have two broods.
Both sexes help in the construction of the nest and we have often trapped the cook bird when sitting on the eggs, proving that both sexes incubate.
The eggs, which are quite typical, number two or three, more often the former than the latter.
Forty eggs average 14.5 x 10.6 mm, : maxima 15.9 x 10.4 and 15.7 x 11.1 mm. ; minima 13.0 x 9.9 mm.

The Nidification Of Birds Of The Indian Empire
Baker, Edward Charles Stuart. The nidification of birds of the Indian Empire. Vol. 3. 1934.
Title in Book: 
1306. Dicaeum concolor olivaceum
Spp Author: 
Book Author: 
Edward Charles Stuart Baker
Page No: 
Common name: 
Burmese Plain Coloured Flower Pecker
Dicaeum minullum olivaceum
Vol. 3
Term name: 

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