748 COLLARED 'PETREL. 
on the 14th February, but he did not obtain any eggs. The native 
name, he adds, is ‘ Katébu’” (Salvin, /oc. cit). 
The adult has the crown slate-grey ; upper surface rather darker 
grey, with a brown tint on the scapulars, wing-coverts and quills ; 
upper tail-coverts grey; tail-feathers blackish, greyer externally ; 
forehead and throat white, with grey mottlings on the cheeks and a 
dark patch behind the eye ; breast and under-parts white, with a grey 
pectoral band, or else, as in the Aberystwith specimen, generally 
suffused with grey below the throat; under wing-coverts and 
axillaries white; bill black; tarsi and proximal half of the toes 
(except the outer one) yellowish, the rest black. Length about 11's, 
wing 8°7 in. 
