Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Holmes,R
1960
Erolia fuscicollis
2 July Skroavik, Alaska
Then extended his wing towards a bird (#2)
which was standing a few feet away
and was walking toward him.
This second bird raised its wing in
response to #1 and turned around.
Bird #1 then walked quickly toward
#2, raised its tail (not spread, but
held in approximate normal position),
dropped its wings and then placed them
horizontally -arin 1ms. He then walked
behind the female (#2), walking in with
a side to side or tottering motion.
The pings-see accompany this performance. After 10sec while #1 was
still in this position, a 3rd bird
landed nearby + both birds in
display raised their wings towards this
intruder. A chose the encroacher with
the #1 (male) leading the #2 (female), but
after the intruder. After several
seconds, there were 6 birds involved
in the chase, and they all headed
southward over the pond. There
now appears to be at least 3
pairs in the area + possibly 5.
The diagram on the following
page shows what I believe