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)