284. Mixornis gularis minor

(284) Mixornis gularis minor Gyldenstolpe.
THE SIAM YELLOW-BREASTED BABBLER.
Mixornis rubricapilla minor, Fauna B. I., Birds, 2nd ed. vol. i, p. 274.
Mixornis gularis minor, ibid. vol. viii, p. 604.
This subspecies is common over a great part of Siam, and in Eastern Burma is found from the Shan Hills to Karenni.
So far as I know Mr. R. Livesey is the only observer to find a nest within our limits. Curiously enough his single nest was a deep cup made of broad grass-blades. With a photo he sends me the following note :— “Nest about 18" from the ground in an evergreen bush.” The three eggs it contained were, unfortunately, destroyed by cattle.
Sir W. F. M. Williamson and Mr. E. G. Herbert took a good many nests of this Babbler in Siam and the latter, who most generously handed over his whole collection to me, writes as follows on its nidification (Journ. Siam Nat. Hist. Soc. vol. vi, p. 92, 1923):—“It is a fairly common inhabitant of the fruit gardens, where it may be seen hopping about on the lower branches of the smaller trees, or on the bamboos and hedges. It is a great skulker and, when disturbed, quickly disappears into the thick part of a bamboo clump.
“The nest is invariably built of dry bamboo-leaves, and lightly lined with fibre ; it is globular in form with the entrance at the side near the top, and measures approximately 4"x4"x3". I have seen many nests and they have all been built either in the centre of a Pine-apple plant or in the top of a young Betel-nut palm about three to five feet from the ground. They are by no means easy to find, as the bird selects a spot where everything is littered with bamboo-leaves, and so every Pine-apple plant or young Betel-palm in that part of the garden has a bunch of dead leaves in it which at first sight might be taken for a nest. I have found this Babbler breeding in the fruit gardens on the West side of the river from Banglampoo to Samray, and lower down at Paklat, also up the river at Samkok. The nesting season is in the early part of the rains during May and June.
“The eggs are regular ovals, moderately elongated, and only slightly compressed towards the smaller end. The ground-colour is china-white, and the markings are fine specks with a few irregular spots in reddish-brown, more densely clustered round the large end. There is some variation in the depth of colour of the markings, for some clutches bear quite a pale shade, while others carry a rich reddish-brown with a few purple-grey spots.
“Three eggs is a normal clutch.”
Some of the clutches taken both by Williamson and Herbert number two only, and all the eggs given me by these two gentlemen, now in my collection, were taken from the 15th April to the 11th June.
Fifteen eggs average 17.0 x 12.9 mm. : maxima 17.4 x 13.1 and 17.2 x 13.6 mm. ; minima 16.7 x 12.3 mm.

BookTitle: 
The Nidification Of Birds Of The Indian Empire
Reference: 
Baker, Edward Charles Stuart. The nidification of birds of the Indian Empire. Vol. 1. 1932.
Title in Book: 
284. Mixornis gularis minor
Spp Author: 
Gyldenstolpe.
Book Author: 
Edward Charles Stuart Baker
CatNo: 
284
Year: 
1932
Page No: 
238
Common name: 
Siam Yellow Breasted Babbler
M_SN: 
Macronous gularis
Volume: 
Vol. 1
id: 
13480

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