406 
Philippine Journal of Science 
1920 
Otus whiteheadi (Grant). Known only from Mount Data. Whitehead 
says that he heard it in Benguet. 
Prionitm-us montanus Grant. Very common in the highlands from 
1,200 to about 2,900 meters. It is also found at considerably lower altitudes. 
In the coast forest it is replaced by P. discurus and P. luconensis. 
Loriculus philippensis (P. L. S. Muller). From near sea level to about 
1,200 meters. 
Yungipicus validirostris (Blyth). From sea level to about 2,400 meters. 
Batrachostomus microrhynchus Grant. From 1,200 to over 2,400 meters. 
This is the only species of frogmouth known from Luzon, and it may yet 
be found in the lowlands. 
Eurystomus orientalis (Linnaeus). Abundant from sea level up to 
1,200 meters. 
Alcedo bengalensis Gmelin. Abundant at sea level and fairly common 
at 1,200 meters. 
Halcyon gularis (Kuhl). A characteristic species of the lowlands; ex- 
tends to at least 1,200 meters in Benguet. 
Hydrocorax ^ hydrocorax (Linnaeus). A forest bird of the lowlands, 
probably not found above 1,200 meters. 
Penelopides manillse (Boddaert). The range of this small hornbill seems 
to coincide with that of the last preceding species. Neither of them is a 
mountain bird. 
M crops philippinus Linn«us. This species and M crops amcricantis (P. 
L. S. Muller) are common enough in the lowlands; Whitehead records M. 
philippinus from 1,500 meters in Benguet. 
Caprimulgus manillcnsis Walden. This is a lowland species, but White- 
head found it at 1,200 meters in Benguet. Whitehead does not mention 
C. griscatus as being found so high as this. He found Lyncornis at 900 
meters although Grant has included both of these genera in the Benguet 
list. While they may occur at the lower limits of our highlands, they are 
much commoner in the lowlands. 
Hcmiprocne major (Hartert). From the sea coast up to about 1,200 
meters. 
Collocalia whiteheadi Grant. Common at from 1,200 to 2,800 meters, 
but also extending into the lowlands. The type came from Mount Data. 
Collocalia fuciphaga (Thunberg). A lowland species, found also at 
about 1,200 meters in Benguet and at 2,100 meters on Mount Data. 
Collocalia isonota (Oberholser) . Found in the lowlands and from 1,200 
to 2,300 meters in the highlands. 
Hierococcyx spaverioides (Vigors). This was collected by us at 1,200 
meters, but is probably more of a lowland species. 
Cacomantis merulinus (Scopoli). Very common in the lowlands and 
found up to at least 1,200 meters. 
Lepidogrammus cumingi (Fraser). This endemic species is usually 
found in the lowlands, but Whitehead records it at 2,100 meters. 
Chrysocolaptes hsematribon (Wagler). This woodpecker is usually com- 
mon in the lowland forest, but has been found in the highlands at from 
1,200 to about 2,800 meters. 
Thriponax confusus Stresemann. The range of this large woodpecker 
coincides with that of the next preceding species. 
Pitta kochi Briiggemann. This pitta has been found only on Mount 
Data. 
