Macher 1969 C. melanotos 2. 13 June displaying very actively - to the exclusion of feeding, in the 45 ± minutes that I followed him (and before I slew him). Most of the hooting was done over one spot, where I presume the ♂ was feeding. The flights were over very large areas, circumscribing the entire exposed patch of ca. 8 acres. Particularly along a long tundra-snow contact the bird used the undulatory, silent territorial flights → I finally had to shoot him on the wing- SN 1039 - and he weighed 102.6 g.! Much heavier than the earlier non- displayers. Bill Berry is using him as a model for a detailed drawing. F.A.P. reports that birds were displaying commonly in our area so. S.F.A.A. 14 June In the morning it was quite foggy, and no display. There were alone birds scattered about feeding. In the afternoon conditions were much better. There are not very many birds in the area - saw ♂ displaying several times. 16 June We seem to have settled down to a familiar Barrow routine: a number of ♂ in the area, but no ♀. Went out to see extension of