1921 .] Recently published Ornithological Works. 32 7 
been met with far more frequently, inhabiting southern and 
drier parts of the country. 
McGregor on Philippine Birds. 
[Some features of the Philippine Ornis, with notes on the vegetation 
in relation to the Avifauna. By Richard C. McGregor. Philippine 
Journ. Sci. vol. xvi. 1920, pp, 361-437, map and 34 pis.] 
For a good many years past Mr. McGregor has been 
stationed at Manilla, where he occupies the position of 
Ornithologist in the Bureau of Science. He has bad many 
opportunities of adding to our knowledge of the birds of 
the Philippine Islands, and in the present essay he deals 
with them chiefly from the ecological and geographical 
aspect. After noticing the great scarcity of sea-birds in 
the Philippine waters and the comparative absence of native 
birds about the town of Manilla, where the two commonest 
species are the European Tree-Sparrow and Chinese Crested 
Minah (MZthiopsar crist at ell u s) , he points out how the whole 
aspect of the low country has been changed by the destruc¬ 
tion of the virgin forest which formerly covered it, and how 
most of the indigenous endemic birds are found in the 
forest-regions that remain, chiefly in the mountainous areas. 
He then discusses the various types of forest, from the 
mangroves of the tide-lands to the pine and the mossy 
types which cover the higher parts of the islands at from 
2000 to 4000 feet, and comments on the birds which 
characterize each type of forest. 
Most of the more interesting Philippine birds inhabit the 
Hipterocarp type of forest, so-called from its most con¬ 
spicuous and valuable constituent u Dipt ero car pus.” The 
forests are best developed on the well-watered plains or 
the lower slopes of the larger mountains, generally below 
5000 feet. 
A further discussion deals with the local distribution of 
the endemic species among the various islands of the 
Archipelago. Most of the species are confined to single 
islands or groups of islands, and are represented by allied 
