Mackean 1968 (13 June) the Drum Area yet. these are now up to normal or better and still very active. I think there are many eggs still to be laid. Yesterday afternoon, ca. 4:00 P.M. Tom found a 3-egg nest at the South end of the drum area, today at 1:00 P.M. Pete and I went out with a Soikkeli-style trap. The nest was now 4 eggs. Used the trap to get one bird. Just as this one was going on the nest another bird flew in and flew ca. 30 m. from the nest, then moved away to other side of nest, ca. 40 m. away. I shot this bird (SM 898) and killed the other (SM 899), then collected the eggs. The incubating bird [illegible] (899) was lighter - presumably the ♀, although heavier than the 2 birds taken by Pitekka the other day (SM 894, 895). before injection of form. after injection 898 43.5 44.0 899 41.2 41.8 ∴ a correction of 0.5 g. is appropriate for birds and semi-pale. the eggs weighed: (#1) 9.6g, (#2) 9.7g, (#3) 9.0g, (#4) 9.5g - Σ=37.8g, x̄ = 9.45g. this seems to fall or about the right point between prudhoe and alpina.