Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Maclean
1968
Calidris pusillus
1 June
Saw at least 2 on the exposed
portion of Beach Ridge, W. of B.R. Crossing.
3 June
4 birds - probably 2 pairs - in the
drum area.
4 June
the drum area is not yet very active-
2 settled pairs, with some interaction between
the males. There were several birds - again
perhaps 2 pairs, maybe 3 - by the gaswell
buildings.
6 June
No change in the drum area.
9 June
there seems to have been an influx by
the Caleeater site. Saw a fair amount of
activity there. Still, the numbers are
definitely down.
14 June
Went out with Safrilano Gogan to
Cake-eater area. Quickly found 2 nests within
about 60 meters. One of these was obviously
quite fresh - very close to the retreating snow.
Couldn't pass it up. Used Soikkeli's trap to get
the bird (SN 888) - 28.3g - must be a ♀. The
four eggs weighed 6.8, 6.5, 6.9, and 7.1 g.
respectively - Σ = 27.3g, x̄ = 6.825g. i.e.-
only 1 gram less than the producing ♀. Egg
laying must be more of a stress in this species
than in alpina. The extraction will be
particularly interesting. I think I will want
some more weights of eggs.