174 



cante : dorso postico et uropygio purissime albis, tectricibus supracaudalibus cinerascenti irregulariter 

 transfasciatis : cauda alba, peruiis duabus mediis pulchre cinereis margine externo tantum obsolete 

 cinerascenti fasciato, pennis omnibus reliquis cinerascenti irregulariter vermiculatis : facie laterali 

 magis albicante, genis nigro distinct! striolatis : corpore subtus purissime albo, mento immacu- 

 lato, pectore antico lineis parvis nigris notato, pectore laterali distinctiiis maculato: hypochondriis 

 summis irregulariter nigro vermiculatis : tectricibus subcaudalibus albis caudam subsequantibus : plumis 

 axillai'ibus paullo cinerascenti transvermiculatis : subalaribus albis nigro transvermiculatis : rostro nigri- 

 cante : pedibus olivaceo-viridibus : iride brunnea. 



<3 CEstiv. prsecedenti similis, sed supra nigricans, colore cinerascente absente et plumarum parte mediana 

 nigra per omnem ptilosin extensa : cauda albicante, pennis duabus centralibus cinerascenti trans- 

 fasciatis : subtus albicans, mento nigro punctulato : gutture et pectore antico ubique maculis subovatis 

 distinctis notatis : hypochondriis distinctiiis transvermiculatis : subcaudalibus albis, cinerascenti media- 

 liter striolatis : plumis axillaribus distincte transvermiculatis. 



2 mari similis, paullo minor. 



6 autumn, prsecedenti similis sed magis cinerascens : plumis dorsalibus albido plus minusve distincte margi- 

 natis : remigibus extus paullo rufescenti tinctis : cauda alba, irregulariter cinerascenti transvermiculata, 

 pennis duabus centralibus versus apicem rufescentibus distinctissime brunneo transfasciatis : subtus 

 omninb albus, gutture imo et pectore summo fasciis obsoletis cinerascentibus transvermiculatis : plumis 

 axillaribus albis. 



$ hiem. pulchre cinerascens, dorsi plumis albo marginatis, scapis nigro indicatis : pileo albo et nigricanti con- 

 spicue lineato, fronte omnino albicante, linea, nigra a basi rostri orta nigricante : secundariis extus 

 albido et cinerascenti transfasciatis : rectricibus duabus centralibus pulchre cinerascentibus basin versus 

 nigro irregulariter transnotatis : subtus omnino albicans- 



Adult in spring plumage. Head and neck pale ashy grey, the centres of the feathers blackish and the 

 margins white, giving a striped appearance ; lores and sides of the head more distinctly white, striped 

 with blackish, ear-coverts greyish, and the stripes on the cheek smaller and of a deeper black ; feathers 

 of the back ashy grey with white margins, the centres of the plumes black, this being confined in some 

 to the shaft alone, in others extending over the greater portion, so that the whole back is mottled with 

 black ; scapulars grey like the back, edged with white, mottled with black ; wing-coverts brown, with 

 very faint white edgings, some of the greater coverts more distinctly margined with white, before each 

 of which white lines appears a narrow one of brown ; quills blackish, with dark brown shafts, excepting 

 the first primary, which has the shaft white, some of the smaller primaries tipped with white, secondaries 

 ashy-grey distinctly tinged with bluish grey, the outer web chequered alternately with brown and grey 

 marks, some of the innermost ones black in the centre of the feather like the back ; at the base of the 

 first primary a tiny quill black, but distinctly edged with white; lower part of the back and rump 

 white ; upper tail-coverts also white, irregularly crossed with greyish zigzag bars ; tail white with more 

 or less distinct bars and zigzag markings on all the feathers, excepting the two centre feathers, which 

 are bluish-grey with a slight reddish tinge, vermiculated slightly near the base ; under surface of the 

 body white, the chin unspotted, but the throat and fore part of the breast dotted all over with more or 

 less distinct black markings, on some of the feathers confined to a narrow shaft-stripe, on others 

 forming a nearly complete oval spot ; flanks exhibiting here and there an indistinct zigzag bar ; under 

 tail-coverts pure white; under wing-coverts white, everywhere covered with pointed greyish zigzag bars; 



