C. Koford Trochilidae Thalurania furcata November 7, 1956 Barro Colorado Is., Canal Zone Have seen are many times at Centia flowers NE of 1424 Building, & at Malay apple flowers (red) 50 yds. NW of Kitchen (in October). Today took two 0-07 at different times in mist net near Bolsa tree SE of Chapman House. One died in bag in captivity (07/18 ). Other banded #205 on right tarsus & released. 23 January 1957 one taken in mist net near Bolsa next to Chap- man House. Put in room, & soon after found dead near screened window. 24 Jan took on in net W. of 1452 Lab. Placed in small cage & covered. An hour later died in cage. 30 January 1957 One taken in mist net & died in captivity after about an hour. 07, testes 3mm. diam.