1980 Walter D. Koenig Melanerpes formicivorus Plague (27 May) checked) would point to 8494 having laid the egg rather than 8496. As with events on earlier days, see transcribed notes (Ron and/or mine) for more details. 28 May Today Ron alone watched the nest. Nobody laid until late in the morning, at which time events were pretty much reversed from yesterday: 8496 was in the hole longer than 8494; one egg again was laid, this one also somewhat intermediate but very close to the size of 8496's other egg(s). Thus, this makes 7 eggs, probably 4 of which were laid by 8494 and 3 by 8496. By this time the birds were incubating fairly intensely; I watched at dusk and at 1940 8473 roosted by himself in the nest. 29 May Ron watched some here this morning (and Sandy did a nest- watch here); no sign of more egg laying. I checked the nest- at 1900 to make sure and there were indeed still 7 eggs in it. 30 May Pam saw 8521 down at Y this morning; he clearly isn't real involved up at Plague even though he has been in the nest some. The events here at Plague are unfortunately not perfectly clear, even though we have obtained some amazing data. On the 8 side, 8473 is clearly the only bird to be really involved here; 8521, for whatever reason, has not paid undue attention to the breeding situation or followed either of the 8s. 8473 on the other hand has more or less alternately paid constant attention to both of the 8s - see Ron's notes for lots of details but even my observations show this: compare his attention to 8496 on 21 May with his