MacLean 1968 C. alpina At 3:45 P.M. went to nest #3 - incubating bird left the nest, flew ca. 60 m. East, and immediately got into a tussle with a neighboring alpine. After ca. 45 sec., bird flew back - I shot it. The other bird followed partially. A third alpine came from the SW and engaged this bird in a fight, then both birds rose and displayed for prolonged period. I collected the eggs and the ♀ I had shot and departed. See summary of the 3 nests. All 3 ♀♀ were heavy: 63.5g, 60.6g, 68.0g. this is more evidence that egg formation is not such a severe physiological stress, since the birds are free to feed as much as they need. This argues that this energy limitation is not the factor limiting Chrysaorii clutches to 4 eggs. 14 June With Safrail and Pete - found 2 nests - each 4-eggs - between the new cakeester and family creek. These nests are ca. 150 m. apart, and I think there is a third nest to be found 100 m. further. 18 June The alpine display is just about over - only occasional bursts. 24 June In the morning run of the traps a ♂ was found at about stake 8.6 of trapline X. In the evening run a ♀ was