collection. At Zey's 170-yard hole were a pair of owls and a few pellets. Saw two other owls near Jabo's stolen hut no-furrow. In the middle of the wheat field are found 3 good burrows, with pellets and 5 and 3 owls, = a total of 13 owls. 160 g pellets (dry). Our pasture and the wheat field are each 1 km long. At dusk set 4 steel traps in 2 groups under the road for lutreolina for Berg. Night dark for first half, then overcast. Continued tropping for tucana. Total of 25 [illegible] when we left at 6 p.m. (plus 7 live ones and 6 others dead in live traps). 3 Lutreolinas alive in the 4 steel traps. Yesterday saw 11 Caranchoa circling nearby and sitting in a treetop. + crop May 24 with Pedro Pachasadeh to Mogdalena. Set 5 woodboxes 2 km N. Mogdalena about 10:30 a.m., at about 8 20.5 km. SE Mogdalena, and about 15 in the usual pasture 24 km. SE. Mogdalena. Seeing owl mornings. The study area had several fresh holes, where we set traps - about 10 traps on the area beginning 11:15 a.m. Lots of singing, including one cross middle of the study area. New traps about every half hour. From our area (edge) to the first sula negro level is 100 m., and 100 m. more to the next sula negro level.