Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
C. alpina - check
21 June #7 all eggs present 21:30 N.V
25 June #8 all four eggs 22:00 N.V.
27 June #7 all eggs gone, one piece of egg shell. N.V.
3 July #1 2 eggs, 2 young in nest N.V
#x - 3 young 25 m out of nest, nest with one unhatched egg.
#2 4 eggs - 2200 SM
#10 3 young 25 m out of nest, nest with one unhatched egg. N.V.
4 July #6,11,12 all eggs present. N.V
5 July #6 - 3 dry young, 1 egg. 21:30 N.V
#11,12 all eggs present. N.V.
6 July #8 3 dry young + 1 egg - nest at 17:00
7 July #6 - nest empty 16:00 N.V.
#11 all eggs in nest. N.V
#12 nest empty - both parents nearby, excited. N.V.
11 July #11 nest empty, young fledged N.V.