Mackean 1966 C. alpina 20 June In poney, low polygonal grounds West of Cake eater, saw flock of 6 birds, both ?♂ + ?♀, on the grounds feeding. Early for this. Too much was going on at that moment for me to get an accurate count of sexes. Birds, when flushed, flew ca. 100 m. as a ± coherent group, then resumed feeding. Heard a few displays, but display activity has obviously fallen off. 22 June In walking entire length of Holmes' Heron walk plot - scored up no more than 5 birds. We have reached the quiet time of the year for this species, however, there were probably more there. My impression from the entire in land trip was that they are scarcer than in past seasons. We only found 1 nest - that by watching; didn't turn up a single one in driving. Will have to return in better weather to check these observations. Nest found on low marsh between lake and Holmes plot - 7 incubating, Egg was 11.9, 10.1, 11.7, 11.1 grams, 17-20 mm embryos; probably >10 days along (saved embryos).