COMMON KOKLASS PHEASANT 23 



and during this transitory period it must function with more effect than the growing 

 tail-feathers. 



Owing to the extreme gradation of the feathers and their simultaneous growth 

 it is rather difficult to prove the Phasianine method of moult of the rectrices in 

 succession, from the outer to the inner pairs, in such an individual as this. Careful 

 measurements, however, and comparison with the full-grown tail-feathers of adults, 

 shows a most beautiful gradation. At the moment when this young male was shot the 

 rectrices had completed the following percentages of growth : 



Inner pair 45 per cent. 



2nd pair 60 per cent. 



3rd pair . . . 65 per cent. 



4th pair 70 per cent. 



5th pair 74 per cent. 



6th pair 75 per cent 



7th pair 80 per cent. 



Outer pair ' . . 83 per cent. 



Other individuals showed that this was the uniform method of moult, by the 

 presence of old central rectrices, but in this young bird the evanescent stage of active 

 growth of all the tail-feathers gives an unusual opportunity to depict how delicately 

 graduated and exact is the phenomenon. 



First Year Plumage. — Except for the frequent hints of juvenile pigment which 

 occasionally stain and tinge the new feathers in early moulting birds, there is little or no 

 difference in the first-year plumage and that of succeeding years. 



The statement that the greater width of the black shaft-stripes on the mantle 

 feathers and their unusual abundance on other parts of the plumage is an indication of 

 immaturity is an error. The extremes of variation in these respects may characterize 

 both birds of the year and very old adults. 



SYNONYMY 



Satyra macrolopha Less., Diet. Sci. Nat, LIX. 1829, p. 196 ; id. Traite d'Orn. 183 1, p. 493. 



Phasianus pucrasse Gray, in Griff, ed. Cuv., II L 1829, p. 26 [Almorah Hills]. 



Phasianus pucrasia Gray, III. Ind. ZooL, I. 1830-32, pi. 40; Gould, Cent B. Himal. 1832, pis. 69, 70 ; 

 Vigne, Proc. Zool. Soc. 1841, p. 6 [Alpine Punjab]. 



Euplocomus pucrasia Jard. Nat. Lib., Orn., IV. 1834, p. 216, pi. XXI. 



Tragopan pucrasia Temm. PI. Col., V. 1834, text to pi. 15 [No. 545]. 



Eulophus macrolophus Lesson, Comp. Buff., VII. 1836, p. 354. 



Pucrasia macrolopha Gray, List of Birds, 1844, pt III. Gall. p. 31 [part] ; id. Gen. Birds, III. 1844, p. 503 ; 

 Hutton, J. As. Soc. Beng., XVII. 1848, pt II, p. 694 ; Gould, Birds Asia, VII. 1854, pi. 26; Adams, Proc. Zool' 

 Soc. 1858, p. 500 [Simla]; Irby, Ibis, 1861, p. 235 [Kumaon] ; Jerdon, Birds India, III. 1863, 524; Gray, List 

 Gallinae Brit Mus. 1867, p. 30; Tytler, Ibis, 1868, p. 203 [Simla to Mussooree] ; v. Pelzen, Ibis, 1868, p. 321 

 [Koteghur] ; Beavan, Ibis, 1868, p. 380 [Simla] ; Brooks, Ibis, 1869, p. 60 [Naini Tal, Almorah] ; Gray, Hand-list 

 Birds, II. 1870, p. 258 ; Elliot, Mon. Phas., I. 1872, pi. 28 ; Elliot, Ibis, 1878, pp. 125-126; Marshall, Ibis, 1879, 

 p. 463 ; Marshall, Ibis, 1884, p. 422 ; Anderson, Jour. Bomb. Nat His. Soc, IV. 1889, p. 59 ; Grant, Cat Game- 

 birds Brit Mus., XXII. 1893, P- SU I Grant, Hand-book Game-birds, I. 1895, P- 281; Blanford, Fauna Brit. 

 India, Birds, IV. 1898, p. 84 ; Gates, Game-birds of India, I. 1898, p. 313 ; Sharpe, Hand-list Birds, I. 1899, p. 36 ; 

 Styan, Ibis, 1899, p. 298 ; Gates, Cat Birds' Eggs Brit. Mus., I. 1901, p. 56 ; " Pine Marten," Jour. Bomb. Nat. His. 

 Soc, XIX. 1910, p. 797; Finn, Game-birds India and Asia, 1911, p. 63; Mitchell, Proc. Zool. Soc. 1911, p. 521. 



Phasianus macrolopha Blyth, Cat. Mus. As. Soc. 1849, p. 245 [part]. 



Pucrasia macrolopha macrolopha Beebe, Zoologica, I. No. 15, 1914, p. 278 ; Baker, Jour. Bomb. Nat. His. Soc. 

 XXV. 191 8, p. 524. 



