B. Hamilton 1967 Journal Jun 26 Panama City, Paname, at Barro Colorado Island, Canal Zone. We got off of train at small whistle stop call Trinidad. At Trinidad we proceeded about 100 yards through grassy fields to water; there we saw Volatinia jacarina display. It perched above ground about 3' from opposite ground in emergent vegetation. It flew about 1-2 in air straight up and came immediately down to original perch. On descent it gave a vocalization "zzip" The duration of vocalization seemed to correspond to duration of downward flight. When we reached the K20 we boarded a launch which was free and had capacity for about 25 people. We then headed for Barro Colorado Island. Near dark blue we entered but saw a group of one adult and 3 juvenile Common Gallinule, Gallinula chloropus. The young were about 3/4 size of adults. When we got underway we ran into a narrow channel. This was supposedly because this was artificial lake as many trees still existed with tops only slightly above water surface. Some of the birds we saw on the journey were Green Heron, Butorides virescens, Black Tern, Chlidonias niger in white plumage; a white egret, a gull and some unidentified smaller ones also observed. On the island we looked at the facilities which were not modern or considerable but seemingly adequate for small group of people. Some experimental animals were kept in cages at laboratory while area located at one part of island leaving remainder relatively undisturbed. At about 1000 with the weather almost as humid with temperature 85-90 we went walking into the forest. The forest was very dense.