1976 Walter D. Koenig 7 Melanerpes formicivorus Lower Arnold 2 Hastings Reservation (20 November) 935. Flash. ♂ red-DS/m #133 is the ♂! He is still here! Apparently it is the ♀ who is being replaced. 937. ♀ LB/Red-than #303 (Bianca 1st yr) is here also, They are the 4 birds (though there may be a 5th). 945. ♂133 is happily greeting and welcoming all the ♀♀, none of whom are ill at ease with one another either. 950. These 4 birds seem to pretty much be it at the moment. 955. All 4 birds just assembled and displaced a 5th bird, an ub ♀, from the perch tree. The intruder flew over to the top knoll area of Bianca. As one expects in a "forming" group, there are frequent assemblies and greeting sessions here. 8 December 1335. Quite a few birds still here, both in the granary and out in the open Valley Oaks toward Black Oak and Al where they are hawking. ① ♀ BREW #215, ② ♀ LB / Red-Lg #303 seen; also ③ ♂ red-DS/light #133. One bird seen flying from here to Bianca, where s/he was greeted by birds there; clearly the Greake is not total yet, 1355. ④ ♀ yell/DB-w(Lw) #213 preening in LA2 '76 nest tree. #s 215 and 213 I suspect have certainly moved here for good; the other(s) (namely the 1st yr ♀ #303) we'll have to wait and see about. 1400. There is still slightly more activity here than one might otherwise suspect, but other than the marked home range shift in these birds (certainly spreading into the field area itself into areas rarely used by anyone besides Al (and Black Oak 2 yrs ago) before) things appear fairly calm. Final group lines are probably not set yet, however.