of an Expedition up the Capim River. 479 



by various Parrots, among them especially the "Curica" 

 (Chrysotis amazonica) and the monosyllabic soft song of the 

 " Inarabu-relojo" [Cry plums strigulosus), comparable to an 

 elongated " i\\" (in the same pitch as the second note of the 

 dissyllabic song of Diplopterus natvius). 



On the 16th of June my attention was principally directed 

 to observation of the "pororoca," which was expected at 

 3.10 p.m. I male several photographs of it, but it was not so 

 marked as two days befoi'e, the wave attaining a height of only 

 one metre. The ornithological increase of our collections con- 

 sisted only of a specimen of Geotrygon montana and a small 

 Tyrant-bird. On the 17th of June the results were more 

 considerable : — Troglodytes musculus, Todirostrum cinereum, 

 Cassicus persicus, Geotrygon montana, Thryothorus genibarbis, 

 Chloronerpes flavigula, Bacco hyperrhynchus, Penelope super- 

 ciliaris, and Monasa nigra. 



Early that morning I made a trip to a small artificial lake, 

 formerly the reservoir for the farm-factory. In the tangled 

 vegetation of its borders I immediately recognised a bird's 

 cry, well known to me in Para, especially in the swampy 

 parts of the forest, where it is called " Igapo." This cry is 

 heard everywhere in similar localities so regularly that I 

 named it the " Igapo-cryer." The bird is by no means easily 

 discovered, but I know it to be Thryothorus genibarbis 

 (Swainson's Moustached Wren). Approaching the negroes' 

 cottages, I noted in the higher trees many Tanagrine forms 

 ( Tanagra palmarum, Rhamphoccelus jacapa, Calliste) and 

 smaller Fringillines (Spermophila), which formed perhaps 

 four-fifths of the bird-flocks here met with. Among the lower 

 shrubs were quietly climbing dark-coloured Formicarians 

 [Thamnophilus) with several species of Synallaxis, only seen 

 for a moment, ami always disappearing before they could be 

 shot. Parrakeets cried in the forests, coming and going in 

 rapidly-Hying Hocks, always disposed to discussion and noise. 

 I was told that the Araras were Unu\ of the (lowers of the 

 Acapd-tree (Andira aubletii), which furnishes a wonderfully 

 hard, dark, and almost indestructible wood, used on a large 

 scale m Par;i, and formerly often exported from the Capim 



