AVES PICID^. 



739 



This giant woodpecker of the forests in the southern Andes and foot- 

 hills was only met with on three occasions by the Princeton Naturalists. 

 The birds frequent only the deep primeval woods and appear to be dis- 



FiG. 378. Ipocrantor magellaniciis, adult female, P. U. O. C. 7758. One-third natural size. 



turbed and thrown out of the balance of their economy by slight invasions 

 of the regions they affect ; the destruction of a few forest trees or the cut- 

 ting of much timber or fuel appears to be the signal for their departure and 

 abandonment of territory where they were once a feature. 



