1983 R.L.Mumme M. formicivorus BlackOak 26May Watching, OBIO: Velly interesting. 3 Al 89 are here: ♂505, ♂680, and ♀568 [illegible] white/white, who seems to have a problem in her right eye. Only passing interest in the nesthole today, lots of opening watus, etc, so it looks like awhile before nesting. The 3 new 89, plus ♂426, ♂102, ♂321, ♂497, ♂691, were hanging out primarily in the 2° area, near the nest hole. Hanging out west of the main graveyard with the "helpers": ♂689, ♂713, ♂741, ♂742, ♂744, x ♂829 (only ♂743 is missing) The 10 gramy area itself appears to be a buffer zone, with both groups of birds making occasional forays there. OBIS, I hear lots of noise up by Al. PS in progress perhaps? 4June Very quiet, 1300. Thought I flushed a bird from the vicinity of the Poison Oak hole, but I wasn't sure. 8June Philip checks the PO hole, 0900; 5 eggs via peeper (bottom now unreachable). 29June **GROUP UPDATE** ① ♂427 disappeared 1 March ± 2 months Last seen 14 Dec 1982, certainly gone by 16 May 83. ② ♂505 + ♂680 moved to BO from Al 25 April ± 2 weeks, First evidence of these 89 at BO 16-23 May 1983. Last seen at Arnold I by Susan - 6 April. Missing at Al - 7 May. ♂743 disappeared, too BlackOak apparently abandoned Fall 83