1987 Walter D Koenig 2 Melanerpes formicivorus Plague HNHR (12 April) 700. Noone at hole since ♀ left. ♂521 not seen at all yet. 704. ♀973 enters hole alone. Now ♂721 at hole. 707. ♂ enters, (leaves. ♂723 enters. ♂721 at hole, By the time the ♀ left at 734, the total number of hole visits was as follows (includes all visits to the hole since 704): ♂721: 15 Both ♂721 and 723 entered ♂723: 5 The hole on several occasions ♂521: 1 ♂521 sat at hole for a short time at 733 only. unknown ♂: 1 745. Going to check the hole. 1 egg, marked #1, 24.9 x 19.2 808. Back watching. 835. ♀ in hole. Trips to hole: ♂721: 1 ♂723: 1 ♀. Left at 839. 900. Being relieved by Loretta. 1800. Back again. Nothing extraordinary so far; ♂521 is not coming to the hole much, however (apparently he is not mate-guarding). 1830. Checked the hole: the egg is intact. 1910. Interesting stuff here at roosting. The good news is that 4 Grads were going around as a tight pack - maybe the ♀ and the 3 ♂s, including ♂521? All 4 were very interested in roosting in the next hole; as far as I could tell, 2 did so. 14 April 800. Well. Lots happening here. Yesterday (While I was in Berkeley) nothing special, although ♂521 was seen at the hole and did enter the hole on several occasions (see numbers on back). This morning, Katy was laid and marked by Stanback. This morning, Katy