474 Mr. J. H. Gurney's Notes on 



lu the two specimens in the Norwich Museum the basal 

 white band on the tail is somewhat less narrow, being about 

 •75 of an inch wide on the central rectriceSj and increasing 

 towards the outermost rectrices, on which the white base is 

 of the width of 4 inches. 



Another nearly allied but decidedly smaller species, L. la- 

 cernulata, presents a somewhat more marked variation between 

 the adult and immature plumages than occurs either in L. pal- 

 liata or in L. albicollis. In an adult specimen in the collection 

 of Messrs, Salvin and Godman, from Rio Janeiro, the upper 

 surface of the head is of a delicate grey, paler than the tint 

 of the hind neck, but not absolutely white as in the speci- 

 men described by Mr. Sharpe ; also, in this example the 

 white bars on the upper tail-coverts are not visible, except 

 when the feathers are disarranged. With regard to the ordi- 

 nary immature plumage, I may remark that it differs from 

 the adult, not only in the particulars mentioned by Mr. 

 Sharpe, but also in the ground-colour of the entire mantle 

 being of a much blacker hue than in the adult, and with a 

 less tinge of grey. One specimen in Messrs. Salvin and 

 Godman^s collection, from Bahia, apparently a very young 

 bird, further differs both from the second or ordinary immature 

 plumage and also from the adult in having all the feathers of 

 the wing- coverts narrowly tipped with rufous brown, except 

 those nearest the carpal joint, which are similarly tipped with 

 white, the scapulars and interscapulars are also tipped with 

 rufous brown, but less conspicuously than the wing-coverts. 

 In this specimen the lower part of the black portion of the 

 tail is crossed on the outer rectrices by six irregular white 

 bars ; on the other rectrices these become fewer in number as 

 the centre of the tail is approached, and the central rectrices 

 show but two such bars, of which the upper one is nearly 

 obsolete, 



Messrs. Salvin and Godman also possess a specimen from 

 Demerara of another allied species, L. melanops, in immature 

 plumage of similar character to the above ; in this bird the 

 entire mantle has the feathers narrowly tipped with rufous 

 brown,, as in the first stage of L. lacernulata ; this immature 



