152 BIRDS OF THE 
grossen Baume in der Nahe des Flussufers, wo er auch 
die Nacht zubringt, einsam und ungesellig. Seine Nahrung 
besteht hauptsiichlich aus Fischen. Da am friihen Morgen 
die Fische sich mehr in der Tiefe aufhalten und erst spater 
an die Oberfliche kommen, scheint dieser Vogel die Jagd 
erst spat zu beginnen und demzufolge lange zu schlafen”- 
8. Polioaetus humilis. 
Faico humilis Mill. & Schleg. Verh. Nat. Gesch. Zool. Aves, p. 47, 
pl. 6 (1889 —44). 
Polioaeius humilis Salvad. Ucc. Born. p. 6; Everett, L. B. Born. 
p. 183. 
An adult female from Nanga Raoen and two males and 
a female from the Upper Mahakkam (Dr. Nieuwenhuis, 
winter 1898—99). — Iris yellowish white, bill horny blue, 
tip black, feet bluish white. 
Hab. Malay Peninsula, Sumatra, Borneo and Celebes. 
4. Spilornis bacha. 
Falco bacha Daud. Traité d’Orn. II, p. 43 (1800), 
Spilornis bacha Salvad. Ucc. Born. p. 7; Sharpe, Ibis 1889, p. 71; 
Everett, L. B. Born. p. 182. 
Sptlornis pallidus Wald. Ibis 1872, p. 363; Sharpe, Ibis 1889, p. 
72; Everett, L. B. Born. p. 182. 
An adult male from Mount Kenepai and another from 
the Bruny River (Upper Mahakkam). — Iris orange-yellow, 
bill blue, cere and bare space on the face chrome-yellow, 
feet orange-yellow. Wing 14 inches. — Contents of the 
crop: Locusts, of the stomach: a Snake. 
Hab. Malay Peninsula, Sumatra, Java and Borneo. 
After having compared our two specimens with those 
from different localities in the Leyden Museum and with 
the numerous specimens from Java, contained in the Col- 
lection of Dr. Vorderman, I am unable to recognize Sp. 
pallidus Walden as a distinct species. Amongst the speci- 
mens from Java there are some which by no means could 
be considered to be anything but Sp. pallidus, while this 
Notes from the Leyden Museum, Vol. XXI. 
