Alaska field notes, v4411
Page 63
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
59 the middle-sized one became listless and refused to eat. This indicated that there must be something radically wrong with it as the appetite had been the biggest thing about the birds. Things grew worse and it would just stand around and squall most of the time, but couldn't eat anything. I finally gave it two large doses of castor oil but even that did not relieve it. It grew worse and on the 8th I decided that it would be more merciful to kill it rather than let it starve to death. A post mortem revealed the cause of the trouble. Its stomach was distended to the utmost capacity with hair, shot moss and other foreign substances of such a nature that would not form into pellets that could be thrown up. I was away from camp for a week so did not see much of the duck hawks for a while. The next time I saw them I could scarcely believe that such a change could be wrought