Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cognwell
1949
Stelgidopteryx ruficollis
Aug. 9 Big Lagoon, Humboldt Co., Calif. - 2 seen
among other swallows flying over wet pastures and
near Maple Creek just inland from lagoon marsh.
Aug. 14 at least 8, most of them immatures, flying about
the bridge & dirt stream banks near the same
site.
Aug. 16 1 adult seen flying over marsh at S.E. end of lagoon.