﻿BIRDS FROM THE ISLAND OF BASILAN. 283 



Butorides javanica (Horsf.). 

 Common in mangrove swamps. 



Bubulcus coromandus (Bodd.). 



A few small flocks observed and a female taken in December. This species 

 is new to the Basilan list. 



Ardetta cinnamomea (6m.). 



Fairly abundant; an immature female was taken December 29. 



Dendrocygna arcuata (Horsf. ). 



A few ducks, for the most part of this species, were observed on a small pond 

 in Malamaui. 



Dendrocygna guttulata Wallace. 



A male of this species was found in a string of D. arcuata killed December 2G; 

 the species has not been previously noted in this locality. 



Mareca penelope (Linn.). 



A female widgeon in very poor plumage was taken January 5. The only 

 previous Philippine record is based on a specimen killed by me in Calayan. 



Fregata species. 



On January 17 a small flock of frigate pelicans was seen near Basilan. 



Astur species. 



A female taken January 24 is provisionally identified as Astur trivirgatus. 



Astur soloensis (Lath.). 



Specimens were obtained in January, February, and March. 

 Spilornis holospilus (Vig.). 



Two specimens taken. 



Butastur indicus (Gm.). 

 A female taken January 31. 



Haliaetus leucogaster (Gm.). 

 Occasionally seen. 



Haliastur intermedius Ourney. 

 A few seen. 



Ninox- japonica (Temin. & Schl.) . • 



A male and a female taken in Basilan, February 27, are darker than specimens 

 from Cuyo and Calayan. The following notes indicate the variations in specimens 

 at hand. 



Basilan, February, male and female; six dark tail-bands, first and second 

 primaries with no light bands, third and fourth slightly banded. 



Cuyo, March, male; four tail-bands, all primaries strongly banded. 



Fuga, August, two males; five tail-bands, all primaries banded. 



Calayan, November, male; five tail-bands, and primaries strongly banded; 

 December, male and November, female; five tail-bands, first primary with indica- 

 tions of light bands. 



Hondo, Japan; five tail-bands, all primaries weakly spotted. 



Ninox spilocephala Tweed. 



Five specimens were taken in February and March. This species is very much 

 like Ninox philippensis but is easily recognized by its spotted head. 



Cacatua haematuropygia (P. L. S. Miiller). 

 Abundant. 



