1979 Ronald L. Mumme Melanerpes formicivorus Finch Hastings Reservation 26 May I watched the nest (with eggs) here this morning, but the data I generated is, I think, questionable. I was set up much to close to the nest, and I was obviously disturbing the birds. Details of the watch on back. I Also took a watch in the afternoon, the results of which are below (and on back? ) FINCH 20.00 Nest empty 9.30 24.30 ♂63 enters hole 10.30 11:20 2.00 ♂66 back down 5.20 10.00 ♀293 at hole .50 4,15 ♂(?) at nest 2,15 10.50 ♂63 head out 4.15 ♂(♀) and ♂66 leave nest — 11.00 ♀293 leaves :10 13.00 ♂(?) enters nest 8,45 11.15 ♂63 back down 3:30 .25 25.00 ♂(?) head out 12.00 14.45 ♂63 head out .15 26.00 ♂(♀) back down 1,00 15.00 ♂63 back down .10 0.00 ♂(?) in hole, end watch 4.00 15.10 " " head out .50 16.00 " " back down 13.40 29.40 " " " " 4.05 3.45 " " " " 22.30 Nest unoccupied 21.15 26.15 " " " " .15 Nest occupied 168.45 26.30 " " " " 5.00 up 28.40 1.30 u " " " .30 down 140.05 2.00 " " " " 8.30 10.30 " " " " 2.15 12.45 " " " " .15 13.00 " " " " 1.10 14,10 " " " " 1.50 16.00 " " " " 1.00 17.00 " " " " 4.50 21.50 " " " " .20 22,10 " " " " 8.05 0.45 " " " " .25 0.40 " " " " .15 0.55 " " " " 1.25 2.20 " " " " .20 2.40 " " " " 2.05 4.45 " " " " .35 5.20 " " " " 2.00 7.20 " " " " 11.50 19.10 ♂63 head out 1.50 21.00 ♂63 leaves nest 3.00 24.00 ♂66 enters, down 10.15 4.15 ♂66 head out 3.15 7.30 ♂66 back down 19.10 26.40 ♂66 head out 28.30 ♀293 at nest leaves — AMPMMPMAM PMT 1430-1740 PDT/190 min bird n En hole down·up at hole ♂63 1 11,30 92.25 19.05 - ♂66 1 40,15 31.40 8.35 — ♀293 - - - - 2/1.00 ♂(?) 1 17.00 16.00 1.00 1/n!!