Acorn woodpecker species accounts, v4448
Page 435
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1988 Walter Koenig Melanerpes formicivorus School Hill West HNHR 11 April 910. 2 eggs, fresh, in 1987 hole (the big knot). 12 April 1430. 3 eggs. Maybe only 1♀ after all. 15 April 1630. 4 eggs. Yep. 1♀ (3 as before + 1 new egg). 24 April 1100. Still 4 eggs, all opaque and developed but not hatched. It just occurred to me to start keeping track of the fact that this is an ant tree. 26 April 830. 3 young hatchlings plus egg #4, developed but may not hatch, I guess. 28 April 945. 2 live babies, 1 dead baby, and egg #4, which died while trying to hatch (never quite made it out of the egg). 18 May 930. Came up to band the babies, but nest empty! Failed. Well, as a consolation, the granary does appear to be out of stores. 26 May 1215. None in any of the granary holes. 3 June 600. " " " " " " 10 June 1230. " " " " " " 18 June 2000. 2 birds roosted together in the low hole in the granary tonight. 27 June 430. 2 birds roosted last night, but ambush failed. 24 August 1800. A nest! In the 3rd unopened hole. Banded 1 baby, #1671, bright and cheery, and about 15 days old, I'd guess (but not overly fat). This means that the last egg date was somewhere about 30 July! They have a couple (only) fresh acorns stored here; thus, one might reasonably consider this a fall nest, I suppose.