Acorn woodpecker species accounts, v4450
Page 152
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Egg-tossing Saga at Westgate 15 May (♀1473 possibly laid; if so, egg tossed.) Evidence suggests no laying that day. 16 May ♀1473 laid, ♀1415 tossed. Egg normal 17 May ♀1415 laid next → ♀1473 tossed ♀1473 laid normal egg → ♀1415 tossed } same hole! 18 May ♀1415 laid; not tossed by ♀1473 (birds not in the hole simultaneously) ♀1473 laid. 2 eggs (normal); #1 & #2. 19 May No eggs! Both of yesterday's gone! ♀1415 (most probably) laid normal egg #1: 25.0 × 19.6 20 May ♀1415 laid 2nd egg: 25.7 × 19.6. 830. 2 eggs in hole. 21 May Eggs #1 & #2 gone! 2 new eggs in their place laid by ♀1415 & ♀1473 ① 25.2 × 19.3 ② 24.2 × 19.1 22 May 4 eggs: ③ 25.3 × 19.4 ④ 25.2 × 19.2 23 May Still (same) 4 eggs. 24 May 6 eggs: ⑤ 25.1 × 18.9 ⑥ 24.9 × 19.2 25 May Still 6 eggs (not checked)