JPMyers 1979 Chuandrios falllandicus 02 Arroyo Chico, Estancia Medland, 35 Km S. of Trenque Leyes by road, Pdo de Madariaga, Provincia de B eating Arg. 22 April (cont'd) 2 fallandicus with contiguous territory. Band 3 Ch.f. today at subunit 1. one @ RoLy lake appeared to have a damaged left leg, even though it still continued to have territorial fights w/a road neighbor during 15 min that I watched it. Subunit 2 at 0917 a bleeding pleuroc @ fallandicus. 0928 a Ch.f. chasing a Cincloida fuscus on subunit 6 (again at 0930 on 7! 25 April Running down the Arroyo between subunits 8+7 I found Ch.f. Ryo, in itself a not particularly exciting event. However at 0950 I found Ryo again, this time with another Ch.f. way-out in the middle of Tamar Llanos with another fallandicus, foraging. 26 April 0945 found Ryo on subunit 6 defending a very small (10m long) territory. Subunit 8-7 is now dry, and sub 6 has seen a great influx of Ch.falllandicus, WR + Zonibyx which, judging from banked WR +Zonibyx came from the B-faces. Ryo is limiting its foraging to an approximate 10m stretch and is defending both ends of the area against intruders-very consistent borders. There are an incredible # of Ch.f. on subunit 6 - each being territorial, which defending a very reduced area. I took micro-hab- data on Ryo, + also pictures of it & neighboring Ch.f. Feeding data from Ch.f. Ryo: time 11:15 air temp = 16.5 substrate temp = 13 stop# # walks since last # secs since last # sec stopped 1 - - 2.5 2 3 1 4 3 3 1 6 4 3 1 2 5 5 40 - PECK 6 6 2 6 7 2 1 PECK 8 2 3 PECK