Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
C K o f o r d
Buteo swainsoni
October 25, 1956
Canal Zone
More than 1000. About 2000 seen within ½ hour between Medder Wye and Ft. Clayton. Circling in milling flocks of 100 or several hundred, then gliding to rest (see Birdy Journal, p.3)
October 30, 1956 Many turkey meltees over Barco Colocks Dr.
today. One separate group mainly Swainson hawks, about 100 milling.