WAYS OF TINAMOU 265 



toward the outside pairs, but the fifth secondary was always 

 the first to be dropped. 



PILEATED TINAMOU 



Crypturus soui soui (Hermann) 



The voice of this bird was one of the commonest noc- 

 turnal sounds which we heard from Kalacoon house. It was 

 but rarely heard even at the edge of the jungle, never from 

 its heart, but was confined wholly to the secondgrowth and 

 the still more open clearing of the rubber plantation. At one 

 time or another it could be heard during every one of the 

 four and twenty hours ; seldom, however, during the day, and 

 only during cloudy weather. From eight to nine in the late 

 evening, at midnight, and again from five to six in the early 

 morning were three very pronounced vocal periods. 



The trilling differed from that of the great tinamou in 

 being of shorter phrasing, and less high and sweet. Usually 

 only a single phrase was uttered, this being repeated after 

 a few seconds, or after another bird answered. But occa- 

 sionally, especially during the midnight period, the birds 

 gave voice to what was the acme of their vocal efforts. The 

 sweet trills rose higher and higher in shortened, excited 

 cadences, until they ended abruptly on the highest note of 

 what was really a secondary trill. 



This may be visualized thus: 



