Acorn woodpecker species accounts, v 4455
Page 71
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1981 R.L. Mumme Melanerpes formicivorus Plague (16 April) remained (with 9496 in the area) < 1 min, then flew way up Madrone canyon again (at least ½ km or so). About 1840, the 3 birds returned in a tight pack from madrone canyon, and after stopping in the last trees briefly, appeared to head off toward "the Y," 9494 remained alone in the granary area. However, right at about 1900, a ♂ flew into the top of the Plague tree, was quickly mounted by 9496, then fully copulated with 9496. It was too dark to see bands, but the ♂ had a "red point" going into his white forehead on his left side. Will have to see who that is. Suspect that it is ♂473, despite last year's electrophoretic data showing 9496's nestling was sired by ♂521. 17 April 0615. Nest checked in 2° tree. Still eggs #1 & #2. 0815 ♂521 enters 0820 ♂494 enters; both leave 0822. Nest checked, Still eggs #1 & #2. 0950 ♂494 approaches ♂521 at hole, ♂494 gives precop tail raise. both leave without entering. 0952. ♂473 enters. 0955 ♂496 enters ♂473 leaves (?). 0956 enters, 9494. 1000, ♂496 leaves with wood chip, ♂494 follows. 1001 ♂521 enters. #3 Nest checked, new egg, 24.5 x 19.1. Probably ♂494, but not certain since both ♂♀ were in. Since ♂496 flew out with a wood chip, End 1020. Later in the afternoon, Walter finds nest empty! Entirely cleaned out, ready for remest. Suspect ♂496 These guys just did not have their act together this time.