cKoford 1957 Jacana jacana 3 February 1957 Barro Colorado Is., C.Z. I saw one in estero near end of WMU trail. Frijoles, C.Z. 6 February 1957 I saw about 4 flying near shoe about 200 yds. before reading landing at Frijoles (from BCI). Gamboa, C.Z. 20 April 1957 Common on water weeds at mouth of Chagres River just above Gamboa bridge. Juvs. conspicuous. There are some on water weeds near boat landing at Frijoles too. 5 May 1957 In trip up Chagres River from Gamboa to Jesus Mina, I saw about 100 swimmers in water.