Field notes, v570
Page 663
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Cogswell 1949 Chondestes strigatus 2. may 7. San Joaquin Experimental Range, 1000' alt., Madrone Co., Calif. at 5:40 AM as I was walking along the road by headquarters here (just before sunrise at this particular spot) a ♂ flew down and alighted on top wire of fence followed immedi- ately by ♀ who alighted atop her! mounting thus was direct without previous perch elsewhere. The ♂ sang a soft warbled phrase of 4 or 5 notes during the 2-3 second period following his arrival, as he fluttered his wings. Then he flew to a brace wire of the fence for about 10-12 seconds, was silent there, and then returned and alighted next to the ♀ but immediately fluttered up and mounted her again. The soft warble, fluttering, and duration same as before. ♀'s tail to left, ♂'s tail down and slightly spread. Copulation, I assume was successful on this or both instances. ♂ uttered no note that I could discern 75 ft. away. Both birds dropped to bare area in grass near patch of amswckia and commenced foraging. (Bruce Brown observed what was probably the same pair in similar activity about 1 1/2 hours later).