Order PASSERES.] 
[Fait. TIMELIID2E. 
CLITONYX OCHROCEPHALA. 
(THE YELLOW-HEAD.) 
Yellow-headed Flycatcher, Lath. Gen. Syn. ii. p. 342 (1783). 
Muscicapa ochrocephala, Gm. Syst. Nat. i. p. 944 (1788, ex Lath.). 
Certliia heteroclites, Quoy & Gaim. Voy. Astrol. i. pi. 17. fig. 1 (1830). 
Molioua hua, Less. Compl. Buff. ix. p. 139 (1837). 
Orthonyx icterocephalus, Lafr. Lev. Zool. 1839, p. 257. 
Orthonyx heteroclitus, Lafr. Mag. de Zool. 1839, pi. 8. 
Molioua ochrocephala, Gray, List of Gen. of B. p. 25 (1841). 
Muscicapa chloris, Forst. Descr. Anim. p. 87 (1844). 
Orthonyx ochrocephala, Gray & Mitch. Gen. of B. i. p. 151, pi. 46 (1847). 
Orthonyx ochrocephala, Buller, Birds of New Zealand, 1st ed. p. 108 (1873). 
Certhiparus ochrocephalus, Gadow, Cat. Birds Brit. Mus. vol. viii. p. 76 (1883). 
Native names. 
The same as those applied to the preceding species : “ Canary ” of the colonists. 
Ad. pileo undique et corpore subtus Isete citrinis, nucha vix olivascente, abdomine imo cum cruribus crissoque 
cineraceis : dorso toto olivascenti-brunneo, flavido lavato, uropygio conspicue lsetiore flavo : tectricibus 
alarum et supracaudalibus olivaceo-flavis, illarum majoribus saturatioribus, potius olivaceo-viridibus : 
remigibus brunneis, ext us dorsi colore lavatis, primariis cauo limbatis, pogonii interni margine laete flavi- 
cante : caudal olivaceo-flava, subcaudalibus et subalaribus olivaceo-flavis, his albido lavatis : rostro nigro : 
pedibus nigris, unguibus saturate brunneis : iride nigra. 
$ mari similis, sed coloribus obscurioribus. 
Juv. similis adulto, sed pileo et nucM olivascente lavatis. 
Adult male. Head and breast, sides of the body, and upper part of the abdomen bright canary-yellow ; shoulders, 
back, and upper surface of wings yellowish brown, with an olivaceous tinge ; upper surface of tail and the 
outer margins of the secondary quills dark olivaceous yellow ; the colours are blended where they meet, 
the nape being more or less mottled with yellowish brown ; lower part of abdomen greyish white ; thighs 
and flanks pale brown ; upper and lower tail-coverts yellow ; the whole of the plumage dark plumbeous 
at the base. Irides black; bill and feet black ; claws dark brown. Total length 675 inches; extent of 
wings 9'5 ; wing, from flexure, 3'25 ; tail 2' 75 ; bill, alongthe ridge '5, along the edge ot lower mandible '/ ; 
tarsus 1 ; middle toe and claw ’87 ; hind toe and claw ‘75. 
Female. Similar to the male, but with the tints of the plumage generally duller. 
Young. The young bird differs from the adult in having the yellow plumage tinged with olivaceous, especially 
on the crown and nape, where the latter colour predominates ; rictal membrane yellow. 
Obs. The shafts of the tail-feathers are often found denuded at the tips. During the breeding-season the testes 
are enormously developed, attaining to the size of small marbles. 
