Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
California Condor Eban McMillan 1 February 1964
from the post on which it perched and gaining about twenty
Feet of altitude, slow its flight, and attempt to hover above
a spot briefly, and then drop into the shrub cover that
here consists of the plant Atriplex spinifera and averages about
twenty inches high.
Seeing that this young eagle appeared quite crude in its hunting
process we stopped the auto and were about to go over to see if
it had captured anything in this drop when the eagle flew
up out of the shrub, moved on about two hundred feet and
then repeated the former sequence. After remaining in the
shrub cover for about two minutes this young eagle repeated
this performance once more before returning to another
fence post and perching.
Jack Rabbits are very plentiful about the shores of Soda
daylight
lake and remain in this shrub cover throughout daylight
hours. This gives them a measure of protection from Eagles
and other predators. It seemed apparent that this
young eagle had not yet become proficient in the art
of the chase whereby it could capture its prey with a
reasonable amount of effort. I think this is
a situation that arises when the young Eagle, that has
been subsidized in its hunting efforts, up to now, by the
parent Eagles, is now thrown into its own resources by the
incoming reproductive urge of the parent birds and will
go through a very critical period before it develops hunting
habits of a more successful nature. I mention this as it would
pertain to the same situation in Condor development. I feel quite