1976 Walter D. Koenig 7 Melanerpes formicivorus Lower Haystack Hastings Reservation (15May) 930. Flash! 2 birds in "nest" tree. 932. 3 birds flew to main storage tree from nest area; 8 RRR among them. 934. Several birds in nest area; some interest in '75 nest hole. 937. Birds gone; apparently off in area past "nest" tree. 947. Some chasing around going on in nest-sap forest.+3 birds then. 957. Several birds in storage tree, including 8WLLW#193. One bird in storage tree sunbathing. 8191 the birds sunbathing. 1005. Unbanded chased from main storage tree, flew to UH tree, much like 8 intruder seen in previous visits. 1020. Birds still in storage area and in forest area in and around the nest tree. Going to check holes. 1021. Just as I was leaving, an unbanded 8 in storage area was displaced several times by 3-4 birds, including another unringed 8 (#325, presumably), and 8LBRW#171. 1024. Chase continuing in knoll area; 8192 involved. 1030. Nobody in holes, but once again I strongly suspect that a nest is imminent. 19May 810. About a minute after arriving, a 8 (unringed, I think) intruder was vigorously being chased away by one of the 8 group members. 818. 8 intruder still being chased (now in saddle seat area) by 3+ birds, including 8RRR #236. 8190 there also. 820. 8 intruder now here; displaced to UH tree from UH. 828. 8173 and 8174 both in saddle with 2-3 others. 848. Another (?) intruder being displaced by 8190. 8Pub#325 there also (in main storage tree). 855. Same story - nothing definite. Going to check holes.