1983 R.C. Mumme M. formicivorus Hay Blom NEST RECORD 3 May Egg found at 0730 (26.8 x 18.7) (presumably laid by ♀711) in fereline hole removed by ♀604 at 1500 hrs 4 may ♀711 lays at 0555, egg carried to granary at 0630 or so (see Denise's notes) by ♀604 5-7 May No eggs laid, as far as anyone could tell 11 May Denise finds surprise nest in V0 in Blomquist ranch. opened hole 0930: 7 eggs ① 25.6 x 18.6 ♀711? ownership guessed ② 25.3 x 20.8 ♀604 but separation is ③ 27.9 x 17.7 ♀711 sodistinct I feel ④ 23.3 x 19.5 ♀604 good about it ⑤ 26.1 x 20.3 ♀604 ⑥ 26.0 x 18.6 ♀711 ⑦ 26.8 x 20.3 ♀604 probably freshest all of the eggs except ⑦ had enormous, bizarre air cells. 15 May Checked the hole 1700, Still 7 eggs 22 may Nestcheck, 1800. 5 healthy, 3 day old nestlings (clutch must have complete on 8 or 9 May, at the latest), plus egg ④ which failed to hatch. So nestling skew is 3-2, in favor of who I do not know Egg ④ contained a full-term embryo. 12 June Uphece for barding, 1200: 3 dead nestlings, were ~ 15-19 days old at death. Hay Blom still has acorns, too 17 June Bird looking out of 1982 second-nest hole 20 June 1000 (checked hole: 5 eggs ~ 4days old (measurements on back)