1980 R.L. Mumme 24 Melanerpes formicivorus Plaque (24 May) 2 eggs laid about 0820. See Walters notes. Both ♀♀ in rest. ♂D 0830 ♂473, ♂521, ♀494 top of nest tree. ♂473 moves slightly toward ♂521, ♂521 chatters! ♂521 chatters again a few moments later! Then 2 more chatters. ♀496 was also nearby, just below where others perched. 1047, 2 ♂♂ alone on top stub of nest tree, ♂521 chatters to ♂473! This occurred just as ♀494 arrived! ♀D 1052 ♀494 alone on top stub, ♀496 flies in from Adobe Hill area, both waka, then ♀494 pecks at ♀496 ♀D 1119, very vicious dom. interaction between ♀♀. ♀494 alone on top stub. ♂473, ♀496 fly to stub, ♀494 lays several sharp pecks on ♀496, directed at head and face. 1128, ♂521 shows slight aggression toward ♀496, top of nest tree, he moves at her aggressively, she gives way, Watching nest again 1215 1228.30 ♀496 ♀494, ♂473 all enter. ♀♀ arrived simultaneously. ♀D ♀494 pecks sharply at ♀496 before they go in. Much tapping, 1235.00 much noise, all leave 1300 ♀494 enters, ♂473 follows, then ♀496. 1303, tapping inside hole 1308 ♀494 ♂473 leave. ♀496 head out 1310 down. 1311 out 1312.30 she leaves, people walking by 1330 Sandy relieves me Watching group 1915 nothing happens. Nothing at roosting, either. 25 May ♀494 lays alone today. Details on p. 25