1981 R.C. Munn Melanerpes formicivorus Y (11 Sept) Anyway, this is very bizarre. I saw a rather vicious dominance interaction when ♂669 pecked hard at a ♂Juv NB. I saw another interaction that I think involved 2 ♂NB. What's more, ♂669 and a ♀NB were working on an excavation of some kind in the Y Sycamore Cin a dead stub, facing down the lane, "Davis" side of the tree End 1700; This will take a lot more figuring out. Catching + banding some of these guys wouldn't hurt 12 Sept Passing by 0800, I find Plague Juv ♂660 in the Blom Knoll root hole tree, eating an acorn. 0830, for added confusion, I find 2 Buckeye juvs, J♂663 Yellow-Bik/Red and J♂665 Metal/Yellow Black in the Big Valley Oak that overhangs the Blonquist cattle pond. Very strange. Undoubtedly, there are a lot of acorns here. I also saw ♂660 of Plague in the tree, too. 1250, for good measure I find Skill juvenile ♂668 Bik-Gnn/m in the knoll area 14 Sept A pass here, 0700-0730. Plague birds J660 + 661 + 9?94 + ♂521 appear to be defending the lower barn locusts, although they are being challenged by intruders. Hanging around the cattle pond I find Buckeye's J663+665. SOS as 12 Sept. Also, J676 of 1500 was here at the cattle pod briefly, but I believe he returned to 1500. 20 Sept 0715 -- Sunovagon, a POWER STRUGGLE! Very bizarre, in that the main action is occurring on Blom Knoll, not in the Lower Barn Locusts. 0800 Geeze, what amess! Birds seen here are: 2♂ NB; J♂660 (Plague); J♂669 (Skill) with