Okder PASSERES.] [Fam. CORVID^. 



GLAUCOPIS WILSON! 



(BLUE-WATTLED CROW.) 



Glaucopis wilsoni, Bonap. Consp. Gen. Av. i. p. 368 (1850). 



Callceas wilsoni, Gray, Ibis, 1862, p. 227. 



Callceas olivascens, Pelz. Verb., zool.-bot. Gesellsch. Wien, 1867, p. 317, note. 



Glaucopis olivascens, Finsch, J. f. 0. 1870, p. 324. 



Native name. — Kokako. 



Ad. supra schistaceo-cinereus, subtus panllo cyanescens : loris cum vitta frontali angusta, regione oculari 

 mentoque nigerrimis : facie laterali et gutture paullo canescentibus : fronte postica et supercilio indi- 

 stincto albidis : caruncula, rictali ovali utrinque cyanea : remigibus et rectricibus nigricantibus dorsi 

 colore lavatis : rostro et pedibus nigris : iride saturate brunnea. 



Juv. dorso toto olivaceo-fusco : abdomine toto cum bypocbondriis et subcaudalibus pallide cinereo-brunneis : 

 carunculis minoribus, pallide cyaneis. 



Adult male. General plumage dark cinereous or bluisb grey, tinged more or less on the upper surface of 

 the wings and tail and on the rump and abdomen with dull brown ; a band of velvety black, half an 

 inch broad, surrounds the base of the bill, fills the lores, and encircles the anterior portion of the eyes ; 

 immediately above this band and continued over the eyes light ashy grey, shading into the darker 

 plumage ; quills and tail-feathers slaty black. Irides blackish brown ; bill and legs black. The wattles, 

 which form a distinguishing feature in this bird, are, during life, of a bright ultramarine-blue; but they 

 fade soon after death and in the dried state become almost black. Total length 16'5 inches ; extent of 

 - wings 20"5; wing, from flexure, 7"25 ; tail 7'75 ; bill, along the ridge l - 25, along the edge of lower 

 mandible 1 ; tarsus 2 - 5 ; middle toe and claw 2 - 15 ; hind toe and claw 1*5. 



Female. Similar to the male, but more deeply tinged with brown on the lower part of the back, rump, and 

 abdomen. 



Young. The young of both sexes have the whole of the back and the upper surface of the wings and tail, as 

 well as the sides of the body, dull olivaceous brown ; the abdomen and under tail-coverts yellowish 

 brown ; the wattles smaller than in the adult and of a pale blue colour. 



Note. Captain Hutton is of opinion that the female is " rather larger than the male ;" but I have found the 

 size very variable in both sexes. Both the figure on our Plate and the measurements given above were 

 taken from an unusually fine male bird, shot by myself in the Upper Manawatu, and now in the 

 Colonial Museum. 



Obs. As will be seen from the above synopsis, I am unable to admit the so-called Glaucopis olivascens to 

 the rank of a distinct species. It was founded on a specimen collected at Auckland by M. Zclebor, 



