1980 R.L. Mumme Melanerpes formicivorus Plaque Hastings Reservation 6 April Returning to the labs at 1730, we find lot behind, a revolution in progress! At first, a NB♀ being chased viciously by another ♀, banded, which I do not believe was the 1st year ♀522. The breeding ♂473 did some casual chasing, especially when the "main event" participants [illegible] cruised by. The intruder was silent when being chased, but whenever left alone, she garricked a great deal. Walter hung a net in the granary, catches ♀522. My impression was that neither shep nor ♂521 were doing much chasing. 7 April Out at 0645, and things are still hopping, although most of the activity has shifted to around the cabin. At least 3 and perhaps more ♀ intruders, the two fall babies from School Hill (♀523 + ♀524), an unbanded ♀, and perhaps one or two others. ♀524 seemed to be more prevalent in the skirmishes than ♀523, but [illegible] confusion reigned supreme. ♀524 was getting chased a lot, as was the NB♀. ♂521 seemed to do a lot of chasing, with less by ♀522 and ♂473. ♀482 was not seen today, so she must certainly be gone. Not nearly as many garricks as yesterday but more grappling, etc. I think I once saw ♀523 mount ♂521 once, but I could easily be mistaken. Things faded down substantially by 0845. 1715, a NB♀ has become a "chaser," although it is still chased by ♀522. NB♀ drums, garricks, mates with ♂473, seems to have the upper hand. At one point, NB♀ + ♂523