2 34 



SteekE, Distribution of Birds in the Philippines. I . u " 



These are, to a great extent, large and long-winged species of 

 Hawks, Owls, Cuckoos, Starlings, Pigeons, etc., which may 

 pass readily from island to island ; a number being extended 

 over the whole archipelago, and some species reaching the adja- 

 cent countries. A few of them are Bornean genera, apparently 

 lately introduced into Paragua, which have not had time to 

 become more widely distributed through the archipelago, and in 

 some cases have hardly as yet formed distinct species. Exam- 

 ples of these are Pernis, 7Yga, Z>uc7ianga, yEgithitta. and 

 Gracula. A few are Philippine genera, differentiated as yet 

 into single species only, or having formerly existed in more 

 species they have been reduced to their present state by the great 

 changes of area and other conditions to which the islands are 

 subject. Such are the genera of Cuckoos, Lcpidogrammus, 

 Dasylophus, and Dryococcyx, the Starling Sarcops, and the 

 curious Timeline form DasycrotopJia. It is probable that a few 

 "•enera of this list, among them Scops, tiatrachostomiis, and 

 Megapodius, will be found to have more than one species in the 

 islands. In this case they will fall into List C, and will in no 

 sense weaken the conclusions of this paper. 



In fifty-three genera, with one hundred and fifty-three species, 

 each genus is represented in the Philippines by two or more 

 species, each of which exists in a limited area of its own, sharply 

 separated by sea channels from the similar areas occupied by 

 the other species of the same genus. 



These genera, with the number of species of each found occur- 

 ring in the archipelago, are as follows: — 



List C. 



Prioniturus, 4 



Cyclopsitta, 2. 

 Loriculus, 7. 

 Spilornis, 3. 

 Falco, 2. 

 Thriponax, 4. 

 Mulleripicus, 3. 

 ChrjsocolapUs. 5 

 Yungipicus, 4. 

 Pelargopsis, 2. 

 Actenoides, 3. 



Xantholsema, 2. 

 Caprimulgus, 2. 

 Surniculus, 2. 

 Eudynamis, 2. 

 Centrococcyx, 3. 

 Buceros, 3. 

 Craniorrhinus, 2 

 Penelopides, 6. 

 Artamides, 5. 

 Edoliisoma, 3. 

 Pseudolalage, 2. 



Hyloterpe, 4. 



Pericrocotu*. 2. 

 Dicrurus, 4. 

 Siphia, 2. 

 Philentoma, 2. 

 Zeoceplius, 3. 

 Sctaria, 2. 

 Broderipus, 2. 

 Oriolus, 4. 

 Erythropitta, 2. 

 Macronus, 2. 



