Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Maclean
1969
C. melanotos
3.
16 June) Gasoline Ridge to collect. Heard only
a couple of bouts of display. Collected
5♂♂ and saw more, but no ♀♀. In
several cases the ♂♂ seemed settled
and flew over to check me out.... to
their ruin. Don't know if the ♀♀ that
were here earlier are now sitting
quietly on eggs, or have moved on.
Of the ♂♂ collected (SN# 1042-1046)
the heaviest - 102.9g - was one known
to be displaying.
17 June Again - ♂♂ are spaced out quite
generally, occupying large territories and
chasing other ♂♂ - but there are few ♀♀
and little display. The trapline caught a
♀ this evening.
19 June Little change. The trapline caught a
laying ♀. I'm sure that we will find that
there has been some breeding, but the ♀ -
incubating alone - are quite inconspicuous.
20 June Collected 2 lone ♂♂ today. Both
were seen displaying. SN1057,1058: 96.3 & 97.4g,
23 June there has been a big influx - same date
as last year. Many birds flocking loosely,
on Central Marsh and adjacent parts of
Beach Ridge. Collected 4 of these - SN
1062-1065. Weight varied from 88.0g to a
109.0g giant. No display or aggressive