Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Julio
1950
Fulica americana
556
July 13
Lake Taroocopl, 42 alt. Alameda Co., Calif.
- 11:23 p.m. SE ♂ on nest K7.17 - he went off as I came in but didn't go more than about 2 feet away. The E ♀ was on 4 eggs in nest P16.2. The P15 structure was warm tho I didn't see a bird on it. A ♀ Ruddy may have come off it. The E ♂ "pulqued" at me several times as he swam just out of the cattails.
Checking ♀ 23.10 & found 2 sprays tho but couldn't tell if that was there - not - she didn't defend if she was.
July 15
same locality - At 6:45 SE ♂ on nest, SE ♀ feeding at J8 with lynx. This one SE yrng is now in the light gray leach, lighter gray front stage.
Size of eggs in nest K7.17 - in mm.
1-35.5 x 51.0
2-35.4 x 50.8
3-35.0 x 49.8
4-34.6 x 50.6
5-34.2 x 51.9
6-34.7 x 49.4 mm
7-34.4 x 50.6
8-34.6 x 50.0
Both parents seemed to be extremely excited about the whole affair. The ♂ especially chrood continuously for about 20 seconds when I first got to the nest. The ♀ quickly came over to join him. I noticed that the ♂ growl is somewhat higher pitched than that of the female. The M pair are together but seem contented to roage at K17.
Size of eggs in P16.2 - in mm.
1. 34.6 x 51.0
2. 34.0 x 50.7
3. 33.4 x 49.7
4. 32.9 x 47.9
The ♂ was on this nest, and defended by some churning, but mostly "pulques" all