Image from the Biodiversity Heritage Library.
Contributed by Harvard University, Museum of Comparative Zoology, Ernst Mayr Library.
| www.biodiversitylibrary.org
Transcription
Chordeiles virginianus.
1896,
August 15.
Lake Umbagog.
Cambridge River marshes.
A little after sunset I heard two Night Hawks peeping
rapidly as if they were rising to boom, but I did not hear them
boom nor did I see them, and presently the peeping sound ceased.