LIST OF PHILIPPINE BIRDS. 7 



The seven species collected can be readily distinguished in all but 

 the first plumage by the shape and location of the crimson and yel- 

 low markings upon the head and nape. 



RAPTORES. 



FALCONIDiE. 



17. Circus Philippinensis. sp. nov. Mindanao, Guimaras, 

 Luzon. Adult female. Ashy brown. Head and neck streaked 

 with white, hinder crown streaked with cinnamon. Scapulars and 

 feathers of interscapular region narrowly tipped with white and 

 showing more or less of large, ashy white spots on both webs. 

 Outer surface of folded wing ashy white banded with black. Tail 

 ashy white banded with ashy brown and tipped with white. Upper 

 tail coverts white. Under surface white, narrowly streaked with 

 ashy brown on throat and breast. Belly, thighs and under tail 

 coverts pure white. Under surface of tail white shaded with ashy 

 and faintly banded. 



18. Astur Soloensis. Mindanao. 



■ 19. Astur trivirgatus. Mindanao. 



20. Lophotriorchis Kieneri. Mindanao, Panay, Marinduque. 



21. Spiz/etus Philippinensis. Basilan, Negros, Masbate. 



22. Spilornis holospilus. Mindanao, Basilan, Samar, Ma- 

 rinduque, Mindoro, Luzon. 



23. Spilornis Panayensis. sp. nov. Guimaras, Panay, Negros. 

 Adult male. Head black, feathers of crest sulphur white at base, 

 then black, narrowly edged with whitish. Rest of upper surface 

 with wings light ashy brown all the feathers edged with whitish. 

 Tail broadly tipped with white and with two broad whitish bars 

 and part of a third basal one. Throat bluish ash, unmarked. Rest 

 of under surface pale cinnamon shaded with ash and spotted and 

 banded as in S. holospilus. Length, 19.75 ; wing, 12.50; tail, 9.0; 

 tarsus, 2.80. Distinguished from S. holospilus by its small size and 

 pale coloring. 



24. Spiloris pallidus. Paragua. 



25. Butastur Indicus. Mindanao, Basilan, Guimaras, Panay, 

 Negros, Siquijor, Cebu, Luzon. 



26. Halletus leucogaster. Mindanao, Samar. 



27. Haliastur intermedius. Sulu, Guimaras, Panay, Bojol, 

 Siquijor, Samar, Marinduque. 



28. Elanus hypoleucus. Guimaras, Negros, Mindoro, Luzon. 



29. Microhierax erythrogenys. Luzon, Mindanao. 



30. Falco communis. Mindanao, Negros, Luzon. 



