1980 R.L. Mumme Melanerpes formicivorus School Hill (20 May) from Plaquet intrudes here! Chased out by ♀260! What is she doing up here? Core 3 flies to nest hole at 0658, ♂86 then ♀260 to enter, ♂402 outside looking in. ♂86 leaves at 0659.30 At 0700, the ♂♂ actually away from the ♀! she's in nest ♂♂ in granary with 1st-year ♀♀! 704 ♀ 424 enters nest, out at 705.30 708. ♂402 enters (♀260 in). At 710, ♂86 actually leaves nest area, flies to granary briefly. 711. ♂402 + ♀524 at nest together, ♀260 in. ♀524 chatters! 718 ♂86 enters hole (♀260 in) @ 719 ♀524 (or ♀[illegible]) exters. 720 ♀524 leaves, ♂402 enters, 721 ♂86 leaves 726 ♂402 leaves 729 ♂86 enters 734 ♂86 leaves → 735 ♀524 at nest, ♀260 in, ♀260 sharp pecks and tugs to face of ♀524! ♀524 chatters 745, everybody leaves 819 ♀524 (or ♀523?) flies to nest, chattering 845 ♀260 flies to nest from 1° tree, neither of the ♂♂ follow her immediately, although later x 909 ♂402 delayed follow of ♀260 x ♂86 915 checking nest, one unmarked egg, marked #3 suspect layed around 0600 (0500) Back up here at 1900. Checked the hole via peeper, still 3 marked eggs in the nest. Good! No surprises. These guys may be incubating already, as a ♀ (presumed ♀260) was looking out as I arrived, she sat very tight, not flushing until I was ¾ of the way up the tree. 1