As long as I remained by my stump my visitors were of the jungle. A yellow-bellied trogon came quite close, and sat as trogons do, very straight and stiff like a poorly mounted bird, watching passing flycatchers and me and the glimpses of sky. At first he rolled his little cuckoo-like notes, and his brown mate swooped up, saw me, shifted a few feet farther off and perched full of curiosity, craning her neck and looking first with one eye, then the other. Now the male began a content song. With all possible variations of his few and simple tones, on a low and very sweet timbre, he belied his unoscine perch in the tree of bird life, and sang to himself. Now and then he was drowned out by the shrilling of cicadas, but it was a delightful serenade, and he seemed to enjoy it as much as I did. A few days before, I had made a careful study of the syrinx of this bird, whom we may call rather euphoniously _Trogonurus curucui_, and had been struck by the simplicity both of muscles and bones. Now, having summoned his mate in regular accents, there followed this unexpected whisper song. It recalled similar melodies sung by pheasants and Himalayan partridges, usually after they had gone to roost. Once the female swooped after an insect, and in the midst of one of the sweetest passages of the male trogon, a green grasshopper shifted his position. He was only two inches away from the singer, and all this time had been hidden by his chlorophyll-hued veil. And now the trogon fairly fell off the branch, seizing the insect almost before the tone died away. Swallowing it with considerable difficulty, the harmony was taken up again, a bit throaty for a few notes. Then the pair talked together in the usual trogon fashion, and the sudden shadow of a passing vulture, drew forth discordant cat calls, as both birds swooped from sight to avoid the fancied hawk.