488 Dr. E. A. Goeldi — Ornithological Results 



some weeks. During the first day of our rowing downwards 

 I observed Ibycter americanus (several times), P lotus anhinga, 

 Ardea leuce, and Geronticus infuscatus. 



Arriving at a sandy spot called " Praia do Ipomonga," we 

 resolved to pass the night there. Our hunters brought, after 

 some delay, a Tinamus solitarius (called " Inhambu-peua" 

 in Tupi, but our Tembes called it " Inarnuhu," that is, "the 

 large Tnhambu ") and a large black Eagle (Urubitinga 

 zonura). Ibycter americanus is one of those birds that does 

 not require much time to make itself known anywhere. Its 

 cry is a violently-expelled " ha-ca-ca-ca-ca/' some eight or 

 ten times repeated with diminishing intensity, and is really 

 likely to terrify the visitor who hears it for the first time, — 

 all the more so as several of these brilliantly coloured 

 birds-of-prey are generally found in the same place and cry 

 together or alternately. The Indians told me that Ibycter 

 americanus feeds especially on wasps ; it seems to be a New 

 World representative of Pernis apivorus. But we fed a 

 "Cancan" that we brought alive to Para with small birds. 

 It was an old, savage, and sturdy individual, darting deadly 

 hate from its blood-coloured eyes, and gave us much trouble. 

 Ibycter americanus seems to appreciate the solitary Indian 

 "taperas "; it was a daily visitor during our journey. 



On July 6th, early in the morning, we reached the mouth 

 of the " Cauachy/' one of the most important right-hand 

 affluents of the Upper Capim, where we had previously 

 resolved to establish our headquarters for some days. This 

 is an absolutely deserted locality, no human creature being 

 met with in a circuit of several days' journey around. The 

 " Cauachy " was some 24 metres broad, and its depth was found 

 by us to be from 4 to 5 metres ha the middle. We spent four 

 days in this solitary spot, rich in animal life of every kind, 

 hunting, fishing, preparing specimens, and taking notes. 



I observed here Cancroma cochlearia, Ostinops decumanus, 

 Monasa morpheus, Eurypyga helias, Ceryle of several species, 

 Lathria cinerea, Tigrisoma, Falco rufigularis, Urubitinga 

 zonura, Ibycter americanus, and Tinamus solitarius. Every 

 night we heard in the forest around us the voice of Nyctibius 



