21. Uroeissa erythrorhyncha magnirostrls

(21) Urocissa erythrorhyncha magnirostris (Blyth).
Urocissa melanocephala magnirostris, Fauna B. I., Birds, 2nd ed. vol. i, p. 42.
Urocissa erythrorhyncha magnirostris, ibid. vol. viii, p. 594.
This Magpie breeds from the Hills South of the Brahmapootra, through Manipur and the Burmese Hills to Siam. In Assam, South of the above river, it occurs but very rarely and then only in the higher ranges over 5,000 feet. Cook and Harington found it breeding in some numbers in the Ruby Mines District, Hopwood obtained nests in the Chin Hills at Tounghoo and also at Maymyio, whilst Mackenzie took eggs at the last-mentioned place, the Manipur Chin Hills boundary and at Pasok near Amherst. All these gentlemen describe the nest as a slight structure of twigs and sticks, lined with the same, only finer, or with roots and tendrils. Hopwood and Mackenzie both also refer to the flatness of the nest and the shallowness of the egg receptacle and, apparently, the nest differs in no way from that of the Indian bird. The site selected may be either in open country, thin deciduous forest or, occasionally, in fairly thick forest. The tree chosen is most often quite a small one and eggs have been taken from sites as low down as 9 feet from the ground. On the other hand, Mackenzie records one taken “30 feet up in an immense teak tree” and another “20 feet up in a large tree.”
The breeding season is principally March and April, a few birds still laying up to the middle of May. In number the eggs vary from three to six. In shape the eggs are similar to those of the other races ranging from rather obtuse broad ovals to rather long pointed ovals ; the texture is somewhat coarse, yet brittle and with little or no gloss. In colour they differ greatly from the eggs of the other races, and as a series might almost be called erythristic. The ground varies from a pale cream or creamy-yellow stone colour to a deeper pink, and in only one clutch have I seen any tinge of green. In disposition and character the markings resemble those of the Indian bird, but the brown is lighter and much more red in tint.
Forty-six eggs, including Mackenzie’s series, average 34.1 x 24.0 mm. : maxima 37.5 x 23.1 and 34.25 x 25.75 mm ; minima 30.0 x 23.0 and 31.5 x 21.75 mm.

The Nidification Of Birds Of The Indian Empire
Baker, Edward Charles Stuart. The nidification of birds of the Indian Empire. Vol. 1. 1932.
Title in Book: 
21. Uroeissa erythrorhyncha magnirostrls
Spp Author: 
Book Author: 
Edward Charles Stuart Baker
Page No: 
Common name: 
Burmese Red-billed Blue Magpie
Urocissa erythroryncha magnirostris
Vol. 1

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