1979 Walter D. Koenig Melanerpes formicivorus Road 3 Hastings Reservation (15 May) (nest watch continued): Totals: 9265 [ 57.05. 9265 entered hole 0.00.(60.00) 3.05. 9265 looked out. 307. Left hole. 3.10. Birds very upset over a hairy Woodpecker here. Chasing him off. Time inc. Time looking Total # visits out hole 8184 48.40 1.37 50.17 3 868 33.03 3.00 36.03 2 9265 48.45 5.07 53.52 3 Total 130.28 9.44 140.12 8 9265 [ 9.00. 8184 entered hole. 25.10. Back down. 23.55. Looking out 30.55. Leaving 31.05. 9265 entered 41.10. Looking out. 43.00. Back down. 52.40. " " 54.27. " " L 0.00.(60.00). ♀ still in hole. Me leaving. 16 May 1930. I tried but failed this evening to figure out who spends the night in the nest. Possibly I'll be able to Tell early in the morning. 17 May Watched the nest here from 430-830. I failed at figuring out who roosted in the hole, but I did get a pretty good watch anyway. See back for compilation. These birds were regularly flying up PO Hill toward Finch slightly to forage every time they left. I also noted that when the 2 ♂ meet at the hole (1 inside and the other to change over with the first) they chatter at each other, whereas this does not happen when a ♂ and ♀ meet at the nest. 18.45. Watching at dusk. I did a good job keeping track of the ♂, and though I could be absolutely positive, I am 95% sure that it was 868 who spent the night in the nest, while the other 2 birds both roosted in last year's nest hole. I did not see any pre-roost mounting. (I did this by being able to identify 8184 and thereby follow 868 from the time he entered the hole, left, and then returned to roost). I could have inadvertently switched birds, but I think not.) [illegible] 868 roasted in nest