J.A.M. Verbeek 1966 Callidris alpina.(1) 3 June Out on Beach Ridge we saw the first Red backs - some 3 pairs. The males were actively flying and chasing each other. 4 June In the same area as above we saw the same number of birds, about 10 (70?) 6 June Red backs moved since we went out last, along with some other shore birds. When we went out in the late afternoon to Beach Ridge we only saw one Red back. 7 June This afternoon Steve and I went to Voth Area where we saw several flocks of Red backs. In one I counted 17 birds and in addition there were pairs sitting on the tundra making a total of about 30 birds. The flock stayed more or less together although there was some chasing going on. There were probably birds that had been here a few days. In the evening we saw a flock of some 50 birds at about 21:00. Many of them stood facing the wind with their bills inclined under a wing. The whole day long there was a cold E wind. 8 June Red backs continued to be the most common shore bird. So far. They are all over the tundra. In some cases they appear to be paired, in other cases they feed together in groups of 4 to 6 and also there are some single birds around. Even so often two males in a communal group start to chase each other. Often too, some single male lands near a paired couple and this too results in a wild chase. Today I noticed how one such single male when he approached a couple did not settle but continued to fly. The male of the paired couple struck one wing