1979 Ronald L. Mumme Melanerpes formicivorus Arnold 3 Hastings Reservation 8 July Walt & I successfully ambushed up here this morning, catching both the unbanded (now banded) ♂ and ♀207 in the hole facing the hide in the large broken valley oak on the west side of the adjacent canyon. Both birds screamed like the chickens. I couldn't tell any difference. 25 Aug Sat here for an hour around noon, seeing or hearing no sign of birds. While watching earlier at Arnold 1, I thought I had heard some activity, but wasn't sure. 26 Aug Yes indeed, both birds alive and well! Started watch 0810, saw ♂508 fly into the Valley Oak to the east of the former granary. He spent several (3-5) minutes pecking and pulling at a twig containing two acorns, directing his pecks at the base of the acorns and the twig stem. He occasionally would pull and twist one or the other of the two acorns. He finally succeeded by pecking at the stem and twisting it off. He then flew lower in the Valley Oak to a nice level anvil, and started to split open and eat one of the Acorns (FD). After a few moment, ♀207 maneu/ brown Tan-Red flew in, landed she hopped down to the anvil. ♂508 gave way and flew off, and the ♀ started to work the acorn for a while, before flying off, leaving an intact and partially eaten acorn 0830 lots of wakas from UA2 area, perhaps where A3 guys will now be hanging out. 0845, Hey, a mini-revolution at UA2!! Two NB ♂, a NB ♀, and the A3 birds all hanging around UA2. ♀207 + ♂508 both strongly attached to the "west" granary tree, defending it from all comers. Lots of open-wing wakas between the two birds. In the "east"granary, 2 NB ♂ and ♀ flying around, one of