JPMayn 1975 Calidris alpina Grid 2 3 August some indication of alpina - Phuvialis arctica. Also seen elsewhere since 30 July (see previous entry). Certainly part of it is due to similar habitat preferences, with both species using the same or at least moderate polygonization. 4 August taking mice-lab. on shorebirds - dunlins are now doable, at least in Hup small patch besideing upland floe of adults and juveniles. The juv's appear to be exploiting a wider set of mice-lab. than the adult, which almost invariably are foraging by pecking in moss covered area of polygon tops. Juv's will forage there + also in more mechnoto-ish site such as exposed pond margin. 5 August a herd of dunlin in the mouth of Volta Creek. At least 50 individuals took off in a flock mixed with pusilla. I had been seeing small numbers of alpina along the creek + in the Brillion ponds for several days, but this was the largest concentration to date. 6, 7 August see journal re alpina habitat use Wainwright, Alaska 20 August interesting habitat expansion apparent this afternoon: along the Kuk river transect (see journal), juvenile alpina were the most numerous bird, with [illegible] 73 in total. 4 of those were adults. However immediately adjacent to [illegible] transect in heavily polygonized area, we found scattered adults and juveniles, totally ~20, with adults outnumbering juv's ~4 or 5 to 1. (Grid 2, Barrow) 25 August - resighted banded alpina - [illegible] in (8,2) of grid 2. this bird was in almost complete winter plumage, save a hint of a dark spot on its central breast. 29 August Crazy flight in dunlins today, not for the first time but very evident this a.m. while running transect 5. #'s of dunlins appear as falling fairly rapidly it appears.