ART. 16. 



BIRDS FROM NORTH CELEBES RILEY. 



53 



greenish on the nape and hind-neck; the gorget with tlie blue less 

 intense than in the adult and the feathers tipped with dusky green- 

 blue; otherwise much as in the adult except the central feathers are 

 not produced beyond the remainder. An immature female taken at 

 Pinedapa, February 1, is molting into the adult plumage. It has 

 acquired the chestnut hind-neck band; the blue of the top of the 

 head and gorget of the adult is appearing ; the breast and belly are 

 still strongly tinged with green ; the central tail-feathers have al- 

 ready been acquired. 



I have no specimen of Meropogon forsteni forsteni for comparison. 



The measurements of the undoubted adults in the above series are 

 given below : 



Family CAPRIMULGIDAE. 



GOATSUCKERS. ^ 



111. LYNCORNIS MACROPTERUS Bonaparte. 



One male, Soemalata, September 6, 1914; one female, Kwandang, . 

 October 25, 1914; one male, Parigi, September 19, 1916; one male 

 and one female, Pinedapa, February 2 and 16, 1918. 



112. CAPRIMULGUS AFFINIS PROPINQUUS Riley."' 



One male, Parigi, September 28, 1916. 



As the above specimen apparently differed considerably from the 

 form with which it has usually been identified, I have ventured to 

 describe it as follows : 



Similar to Caprimulgus afflnis griseatus but buff of belly unbarred, the 

 ear-coverts and sides of neck more heavily marked with buff ; the buffy spotting 

 on the wing-coverts more numerous and pronounced ; the white of the outer 

 tail-feather more extended basally. Wing, 171 ; tail, 101 ; culmen, 10 mm. 



Remarks. — I have been able to compare this specimen with three males of 

 Caprimulgus afflnis afflnis from Java and one from Borneo and seven males 

 of Caprimulgus afflnis griseatus from Sibuyan and Luzon, Philippines. From 

 the former it is much lighter, both above and below, and the buffy spots on 

 the chest and wing-coverts are more numerous and pronounced and much 



»« Free. Biol. Soc. Wash., vol. 31, 1918, p. 155. 

 20183— 25— Proc.N.M.vol.64 23 



