Holmes, R. 1961 Ercanthes pusillus 22 July Barrow, Alaska Now see during the last weeks, but I fully fledged juvenile caught in Daphnie this morning. - mauri - not pusillus 30 July Sep. juv. see along frost lagoon + on the parts with 1 Bimul- in company with E. mauri. Some aggressive activity was noted between indiv. (The species with mauri juv's.) This consisted of short chase with head lowered forward, wings stretched out. The second along snow patch - 10' - dia - when 5 birds (3 pus., 2 mauri) were spread out. Whenever 2 came into contact, they would assume posture to drive one the other out. This went for 5-10 min. 2 Aug - See see - in gravel pool (see No.1) Brittan's area - there were juveniles) 4 Aug 1 Jun Sen + coet. - nec volt Ave - it was brought unaccompanied by Ada. 9 Aug 6 Dnn Sen - In gravel area near Brittan's Area. - along with 30+ Jun Western 18 Aug None seen recently!