Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Males
1954
June 13 Met with One egg located—not on a high mound but on the side of a low one covered with a good stand of tall grass. The female is the brown one of the pair. I found the nest by seeing her flying together then watching her. She left 10 minutes to return to the nest—made 3 steps or several long walks around her before finally going to it. Nest in polygonal area of drainage of loon pond.
Ridge #2 marks boundary of 2 owl territories. While then watching Loons had two male owls cruise along the ridge—one on each side—calling back and forth—the call was a hoarse screech almost grunt like “nya nya” with rising inflection like so / /
Yesterday saw defense by male—attacked a second male once—both then landed 25 yards apart. The outsider finally flew off. One pair was only hostility seen.
June 14 Piteugen Lake. Here things continue to puzzle me. Am still at a loss to know exactly how many are in our area. This evening I had an especially enlightening series of observations. It began when