Bubo virninianus . 
Concord, Mass. 
1893. tactics which she had hitherto adopted and contented herself 
May 4. with taking short, restless flights alighting high up in the 
(Ho. 5). trees and sitting erect and motionless when perched. This 
change of behavior interested me greatly. I interpret it to 
mean that she discovered it to be useless to try to lead me 
away from her young by pretending that her wings are injured. 
Certainly I must have caused her much greater anxiety than on 
any previous occasion but possibly the very fact of my near 
nearly 
approach to the young and the erection of the camera over them 
convinced her that nothing that she .could do sould be of any 
.avail (as they were completely at my mercy). She was. much 
more noisy, however, than heretofore and I was deeply inter- 
ested in the variety of sounds that she uttered. At first 
she hooted the usual night strain but in subdued and muffled 
tones. Then she changed to a hoot which, if I am not mistak- 
en, was identical with that of the honk in n Owl that sometimes 
visits our camp at Pine Point and which I have never before 
suspected could be a Bubo. She used this form of hoot during 
the latter half of my stay near the young. I noted it care- 
fully on the spot as follows : -I loo , hoo, ho o -ho o -ho o , ho o -hop , 
hoo given very rapidly and smoothly in very soft, low, cooing 
i 
: tones. Besides the hooting she uttered a barking wah or 
wangle very like the bark of a dog (sometimes doubling this 
