ART. 16. BIRDS FROM NORTH CELEBES — RILEY. 37 



As the specimens at hand are so few I can not do better than 

 Wetmore,*'^ who reported upon the Paumotu specimen, in arriving 

 at any definite conclusions and assign the Celebes bird to the typical 

 form. 



Family FALCONIDAE. 



HAWKS, EAGLES, ETC. 

 68. CIRCUS ASSIMILIS QUIRINDUS Mathews.<» 



One adult male, one adult female, and one immature female, 

 Parigi, September 12-25, 1916; one adult male, Toboli, October 26, 

 1916; one immature male, Rano Lindoe, March 10, 1917. 



The only Australian specimen available for comparison is an 

 immature, sex undetermined, but probably a female. It is in about 

 the same stage of immaturity as the immature female from Parigi. 

 Wlien compared, the Celebes bird is darker, especially on the lower- 

 parts; in size there is not much difference, the Australian specimen 

 being slightly the larger. 



As the immature plumages of hawks are very puzzling the two 

 mentioned above may be roughly described as follows: The male 

 taken at Rano Lindoe differs from the adult male in being blackish 

 seal brown above; the top of the head heavily streaked with the 

 color of the back ; the throat and foreneck the color of the back, the 

 latter with the feathers edged with cinnamon rufous; remainder of 

 the underparts cinnamon rufous streaked with white, the sides and 

 flanks beginning to break up into bars and spots as in the adult. 

 The immature female taken at Parigi is blackish seal brown above; 

 the head much lighter than in the adult, especially on the nape, 

 the dark streaks broader, and of the color of the back or even darker ; 

 the feathers of the mantle edged with drab ; the scapulars and wing 

 coverts rather broadly tipped with cinnamon, fading to buffy on 

 the outer margin; the rump and upper tail coverts the color of the 

 back tipped with orange-cinnamon, the longer tail coverts with 

 white; the lower parts are cinnamon, fading to cinnamon-buff on 

 the lower breast and belly, and streaked with seal brown, the streaks 

 becoming narrower on the abdomen and fading out on the belly; 

 the tail is the color of the back with darker shadow bars. 



This is more common about the villages and rice fields than elsewhere and 

 catch a great many young domestic chicks. — H. C. R. 



69. LOPHOSPIZA GRISEICEPS (Schlegcl). 



One immature female, Laboea Sore, November 15, 1916. 

 This specimen measures: Wing, 201.5; tail, 164; culmen from 

 cere, 18. 



«s Bull. Mus. Comp. Zool., vol. 63, No. 4, 1919, p. 171. 

 8" Birds Australia, vol. 5, pt. 1, 1915, p, 23. 



