Collection uf Birds from Northern Borneo. 363 



IS a synonym {conf. Sundev. Kritisk, Ois. d'Afr. p. 25). This 

 Bornean species appears to be smaller than either of these two 

 Eagles, being about equal in size to S. rufipectus, Gould. The 

 adult plumes that have appeared on the thighs, under the 

 shoulders, and on the abdomen and flanks are much paler than 

 in my Malaccan, Javan, and Cingalese examples of S. hacha. 

 I am inclined to the opinion that it belongs to a distinct and 

 undescribed species ; yet, until a fully adult individual can be 

 examined, I propose to regard these Bornean birds as repre- 

 senting ^. bacha in immature plumage. If it eventually prove 

 to be distinct, I venture to suggest for it the title of Spilornis 

 pallidiis. 



Two examples are sent by Mr. Everett, one without a label. 

 One marked '^' Jambusan, September, $ ," is of a young bird in 

 transition plumage. The feathers of the interscapular region 

 are pale rusty fulvous, with a broad subterminal dark brown 

 band, which is fringed with albescent fulvous. On the lower 

 back and uropygium the feathers are pale brown, terminated 

 with deeper brown and fringed with albescent-fulvous. The 

 feathers of the head, including the crest, which is considerably 

 developed, are white at their insertion, then tawny, with a dark 

 brown subterminal drop with a terminal fringe, much decom- 

 posed, of albescent-fulvous. Below each eye a bold pure white 

 mark ; a narrow black line over the eye, joining the black ear- 

 coverts and cheeks ; chin and throat immaculate tawny. The 

 remainder of the under surface tawny. Some of the pectoral 

 plumes with pale brown central triangular markings ; lower 

 down some with faint central streaks of pale rusty-brown. 

 Abdominal and ventral plumes, the thigh and tail-coverts, and 

 the flanks with numerous cross bars of dilute ferruginous. 

 Axillaries barred with bright pale ferruginous. The primaries 

 are brown above, with black outer webs, deepening towards 

 the tips, which are white, and one or two slanting black bars 

 crossing both webs. Underneath the quills are white, the black 

 bands and ends showing through as pure or mottled pale brown. 

 The rectrices at their base are brown ; then a band of very dark 

 brown an inch and a half deep, followed by a still broader pale 



band of albescent brown ; then a narrow subterminal very dark 



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