1976 Walter D. Koenig Melanerpes formicivorus Lower Haystack Hastings Reservation 26 May 900. Most of the birds are hawking in the saddle tree; #s 236, 171, 192, 193, and 194 seen. Hawking was continuous until 1920, when several of the birds flew to the Blue Oak sap tree along the knoll. 930. Intruder being displaced from saddle area, where several birds are still hawking. 950. #170 seen. Birds still moving around alot; lots of greeting and flycatching, no interest in any holes. 952. #190 chased intruder from edge of chaparral. 954. Intruder still being displaced; now by several birds in saddle area. 1000. Birds now in saddle again, still hawking. Time for me to check the holes and depart. 31 May 1000. Watching. I don't see anyone off hand. 1005. 8WLW#173 hawking in front of "nest" tree; remained until 1010 when he flew to the sap tree along the knoll. 1015. 8171 in storage tree; others in sap tree and in between. 1020. 9190 here. #171 also. 1100. Leaving. All birds have slipped into the woodwork. 2 June 745. In "hide" One 8 over by "nest" tree. Is 186LW#174. 757. 18RRR#236 flew into main storage tree. 802, 39ub over by "nest" tree; flew into forest between it and stores. Some calls coming from knoll area also. 815. 3 and 4 8CHR #170 over by "nest" tree; 3 flew to storage tree. 925. 5 8171 by "nest" tree now. Birds also in storage trees. 3 eating an acorn there, watched by 3 835. There is a constant low-moderate flow of birds and level of activity centered about the "nest" tree, possibly one of the holes in the low limb.