Maclean 1969 C. alpina 2. (6 June) is small. 9 June With warm [illegible] weather - many more birds in the area and display for the first time. Every bit of exposed tunora has some alping, and there was a great deal of chasing about and displaying. Saw one flock of about 40 birds South of FAA. Collected 4 - SN 1020 - 1023 10 June Quite a bit of display today, although some birds are still in flocks. Saw a nest-cup display, and a bit later 3 birds (I think not including the 2 involved in the display) were feeding quietly at about the same spot. Inland, where less tunora is exposed, territorial pairs are occupying small open spots and displaying. About as yesterday. 11 June 13 June Birds must have things pretty well sorted out, as display has dropped sharply. Birds are closely associated in pairs, and a number acted as if laying eggs. 16 June On southwest extension of Gasline Ridge - a number of birds seemed to be unmated. Collected 4 birds - SN # 1047 - 1050. 1050 is a laying f.