APPENDIX B. 125 



of brown on all the upper parts, except tlie nape, where adult 

 plumbeous feathers have appeared; but on one side of the 

 neck there are conspicuous remains of a white nuchal collar ; 

 the tail has three imperfect transverse white bars besides the 

 tip ; the upper breast, some portions of the lower and of the 

 abdomen, and also the tibiae, have acquired the adult plu- 

 mage, and resemble those parts in No. 1 ; but on the 

 remainder of the breast and abdomen, and also on the flanks, 

 the immature plumage is retained ; while the dark cross bars 

 are narrower and at a much greater distance from each other 

 tjian in the adult dress, the light interspaces being more or 

 less tinged with buft'; the under wing-coverts and axillaries 

 seem to be in the adult state, and resemble those of No. 1 . 



No. 9. Female, nearly adult, Yquitos, Upper Amazcns (shot 

 13th June). — This specimen is marked by the collector as 

 having the "eye pinkish brown ;^' and its being this colour 

 rather than white, as in Nos. 5 and 6, may be an indication 

 of immaturity, to which I also attribute a slight buffy tint 

 pervading the light portions of the breast and abdomen ; the 

 centre of the abdomen is free from cross bars, but these are 

 strongly marked on the tibise and under tail-coverts ; the 

 under wing-coverts are imperfectly cross-barred, and there 

 are three white cross bars on the tail. With the exceptions 

 here noted, it agrees with No. 1. 



No. 10. A younger bird from the same locality (shot 21st 

 October). — This bird is slightly browner on the upper parts 

 than the preceding, and the two white bars on the tail are 

 not quite so narrow; the throat is greyish white; adult 

 cross-barred feathers have appeared on the jugulum and 

 breast, also very slightly on the flanks, tibiee, and outer 

 portion of the lower under wing-coverts ; the upper mandible 

 is slightly tipped with horn-colour; with these exceptions all 

 the under surface is white, slightly tinged with buff". 



Nos. 11 and 12. Adults, said to be from Brazil. — Both 

 these specimens agree with No. 1, except that the under 

 wing-coverts are only partially cross- barred, and that there 

 are no transverse bars on the under tail- coverts. 



No. 13. An immature bird from Cayenne. — Very similar 



