816. Orthotomus sutorius maculicollis

(816) Orthotomus sutorius maculicollis.

The Siam Tailor-Bird.

Orthotomus maculicollis Moore. P. Z. S., 1854, p. 309 (Malacca).

Vernacular names. Nok-a-chip (Siam).

Description. Differs from all the preceding races of sutorius in having the ear-coverts and sides of the neck white mottled or streaked with blackish ; the throat and upper breast invariably marked with black, owing to the black bases to the feathers showing through ; the underparts are otherwise silky-white, very slightly suffused with buff.

Colours of soft parts as in the other races of sutorius.

Measurements. Wing 43 to 48 mm.; tail 35 to 56 mm.; tarsus 21 mm.; culmen 13 mm.

Distribution. South Siam, Malay States; there is one specimen in the British Museum from Cambodia and several Tenasserim specimens are referable to this race, though the great majority are patia.

Nidification. Messrs. Williamson and Herbert collected fine series of nests and eggs of this Tailor-Bird in the vicinity of Bangkok. Mr. E. G-. Herbert gives the nesting-season as from early May to August and says that it breeds in the gardens, making nests quite similar to those of the Common Tailor-Bird, sewing them into one, two, or more leaves and placing them sometimes within a few feet of the ground but, on the other hand, often in wild almonds and prickly palms as high up as 20 feet. The average of fifty eggs is 15.5 x 11.4 mm.: maxima 16.7 x 12.2 mm.; minima 13.6 x 10.7 and 14.0 x 10.6 mm. In appearance they cannot be distinguished from those of O. s. sutorius but one clutch taken by Mr. E. G. Herbert is practically pure blue.

Habits. Those of the species.

BookTitle: 
The Fauna Of British India, Including Ceylon And Burma-birds(second Edition)
Reference: 
Baker, EC S (1922–1930) The fauna of British India including Ceylon and Burma. Second edition. vol.2 1924.
Title in Book: 
816. Orthotomus sutorius maculicollis
Book Author: 
Edward Charles Stuart Baker
CatNo: 
816
Year: 
1924
Page No: 
413
Common name: 
Siam Tailor Bird
M_ID: 
24068
M_SN: 
Orthotomus sutorius maculicollis
Volume: 
Vol. 2
id: 
3460

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