1977 Walter D. Koenig Melanerpes formicivorus MacRoberts Hastings Reservation (17 February) Conclusions: I surmise the chronology of this group to be as follows: 1) δ6 (δ510), ζ6 (511), and their single remaining offspring from 1975 (δ162) remained intact to 31 May 1976. 2) δ510 disappeared about 31 May 1976, leaving ζ511 and δ167. 3) About the beginning of August, a δ [?] began considering moving in. ζ511 and δ162 still here. 4) δ162 disappeared [very probably moved] near the end of August, as previously designated (see 23 November) 5) By 11 September, a minor revolution was taking place here, vying for slots. ζ511 may or may not have been here, of course, but it is not unreasonable to presume that she was. Several δ♂ were here, as well as strange ζ♀ (one of whom was caught and banded), who presumably were attracted to the area but were not directly involved, as ζ511 (given that ζ511 remained, as I must assume). 6) By 10 October, one adult δ (unbanded) had settled here along with ζ511. I assume that the 2nd δ6 seen several times was a 1st year bird from the adult δ's home group who tagged along, as I have seen frequently happen, but did not move permanently. This adult δ will be δ610. Moved to MacRoberts 26 September 1976. 7) These 2 birds, ζ511 and δ610, remained through November, attempting to store. δ610 was caught and banded on 16 November to become δ323.