Acorn woodpecker species accounts, v4456
Page 169
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1982 R.L. Mumme Melanerpes forficivorus Gazebo 11 May Checked nest, 0945. 5 not-too-bad-looking babies. No sign of 6th egg or nestling. The nestlings looked a bit thin, perhaps, but there were certainly no runts. One weighed ~20g, so I guessed them to be 6 days old or so, meaning my guess of 27 May banding, was pretty good. 21 May Well Gazebo has blown it again! Leslie watched here yesterday and saw no feedings in 1hr. Sure enough, at 1200 I check the hole and find the remains of 3 dead nestlings, moderately decomposed, about 12 days old at death. So I would guess nest failure occurred 18 May or so. Starvation certainly is the likely cause. However, Gazebo is not out of acorns: ~100 or so left. Certainly not many, but no excuse to let the nestlings starve. Just like last year. Interestingly, two of the nestlings appeared to have been partially eaten! The head of one was entirely missing, and it appeared that viscera of the other was missing. Hmm! Also, while F was here I heard a lot of chatters + warbles coming from the fence line. And F briefly saw 5 birds here! It will be worth waiting here before too long. 1250, just as F'm leaving I confirm 9653 bro-wart/corn + 8 [illegible] 516 +June Gazebo's not dead yet! At 1430 I flush a bird out of the low 1980 hole. F climb up + find 6 eggs including one runt, Eggs all about 4 days, meaning I should anticipate hatching on 12 June and banding on 3 July!