224 PROCEEDINGS OF THE NATIONAL MUSEUM Vol. 87 



soon determined that the note was that of the present species. I 

 secured two here in heavy growth, one low dowa and the other about 

 20 feet from the gi'ound. The call seemed somewhat louder than 

 that of C. linearis, which I had known elsewhere, and the birds 

 ranged somewhat higher in the thickets. On the following day, now 

 that I knew the note, I found this a common bird along the valley 

 of the Rio Cumboto. Here its whistled calls and an occasional mew- 

 hig, scolding note came constantly from the brush where the birds 

 kept to dense cover. As they oidinarily present the breast to the 

 observer and are usually seen indistinctly because of intervening 

 leaves they give the impression of being entirely black. When one 

 flew across the highway, however, my eye caught a flash of light blue 

 from the back. 



Family TYRANNIDAE 



SAYORNIS NIGRICANS LATIROSTRIS (Cabanis and Heine) 



Aulanax latirostris Cabanis and Heixe, Museum Heineanuni, pt. 2, 1859, p. 68 

 (Bolivia). 



In crossing the Cordillera de la Costa on October 22 I was delighted 

 to see this friendly bird as soon as we had reached the elevation of the 

 rain forest below Rancho Grande, and the fohowing day Ventura 

 Barnes, Jr., brought me mv first specimen. Later, I secured others 

 on November 3, 5, and 9. The birds were found iVom an elevation 

 of 1,500 feet on the north side to the summit of the pass in El Porta- 

 chuelo and were most common above 2,500 feet. They were observed 

 ouly along the roadwa}^ about cutbanks and at the crossings of 

 barrancas, never penetrating into the forest. In all their mannerisms 

 they recalled the race of the black phoebe of the Southwestern United 

 States. The four taken have the white edgings of wings and tails 

 decidedly more extensive than the three other latirostris 1 have seen 

 (two from Peril and one from the Santa Mart a region), a difference 

 due possiblj'^ to fresher plumage. 



FLUVICOLA PICA (Boddnert) 



Muscicapa Pica Boddaert, Table des planches enlunain^ez, 1783, p. 42 (Cayenne). 

 At Ocumare de la Costa on October 25 I took a male from a shaded 

 perch in a little tree on the play a at Independencia. With steadily 

 twitching tail it moved actively near the ground. On October 29 I 

 watched another for some time as it circled above the water of the 

 lagoon, flapping and turning for minutes at a time and after a rest on 

 some projecting stub continuing its llight. With its pointed wings 

 it resembled a little swallow. At El Sombrero on November 16 

 I collected one at a nearly dry lagoon located in a snudl opening in the 

 woods. 



