1977 Walter D. Koenig Melanerpes formicivorus Black Oak Hastings Reservation (3 October) 1006. ♀ ub, I think. An ub ♂ definitely here. 1023. ♂ or, #321. 1028. ♂ ub seen a little more definitively. 1100. Leaving. Looks like group composition remains the same as before, and that I still need to catch some birds here. 23 October 1840. With an ambush set up at the "nest hole" in the Black Oak, (all?) 6 birds roosted there. I had been worried by a Great Horned Owl, who flew up at dusk and caused some consternation while sitting in the area, but everyone came anyway. 24 October 700. The ambush went perfectly and exactly as planned except that in addition in place of ♂320 the 6th bird was a 2nd unbanded ♂! In sum, I caught ♂102, ♂321, ♂3410, 2 unbanded ♂♂ (now #426 and 428) and an unbanded ♀, #427. This may or not be everyone—just at dawn 2 birds were calling nearby, I especially close in the side area who certainly may have been a Black Oak bird (possibly ♂320, of course). Hopefully this takes care of all the unbanded birds here, however (all 3 were adults). Of course, now I have to come up with some plausible origin for the 2nd unbanded ♂! (this is at least a step forward from not even knowing he existed!) 26 November Time to begin trying to come up with an origin for the 2nd ub ♂ (#428). Best I can tell, no indication of any funny business occurred until April 1977, when there were numerous odd birds (mostly ♀♀, but some ♂♂ as well). Of course there is always the difficulty of seeing 2 ub ♂♂, meaning that they both may have been here for some time. In fact, given that the odds of this bird having joined the group this