Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Marshall, 1945
Palau
Collocalia inexpectata
all islands abundant throughout but not evenly
dists. Always some along crest of
ridge. Not in jungle. Small groups or
flocks of a dozen favor certain spots
where they are seen daily: a
certain populated road intersection
on Babelthuap, a road cut in
farm co. on Koror, road between
ridge & lagoon N end Koror ridge (the
little ridge). Favors roads. Flocks
seem to spend hours (or all day?) at
a single road cut & stay within
100 yds & generally stick to 1-5 yds
in air. Evening gathering is
spectacular: at this north termination
of the Koror little ridge is inland
which is metropolis for Pteropus, Emballonura,
Otus. At dusk the swifts begin to
gather there, augmenting the local
groups until several hundred are
there. They continue foraging even
while Emballonura are out then
they begin to go higher - treetops, then
over the trees - then swirl around
& ascend in a loose cloud. By
that time it's dark & the cloud
has disappeared over the ridge.
I always enjoyed watching a pair in