80 The Ottawa Naturalist. [Aug. 



found to be also subject to periodic nights. We saw one such on 

 October 30, 1908, when, during our three days' stay, we noted 

 about fifty birds each day. 



Red-tailed Hawk. (Buteo borealis). 



The only flight of this species noted at the Point was on 

 October 30th November 1st, 1908, when " numbers were in 

 sight at any one time." Without doubt flights of both of these 

 latter species occur with fair degree of regularity. 



Rough-legged Hawk. (Archibuteo lagopus sancti-johannis) . 



The Rough-leg is usually regarded as one of the rare hawks 

 in Southern Ontario and the seeing of a couple of individuals a 

 season is a matter of some congratulation. On November 2, 

 1908, Mr. W. E. Saunders described seeing what may well, in 

 this species, be regarded as a flight. During the day he saw 

 about thirty-four individuals, most of them in the evening, when 

 twenty-six were in sight at one time. They were all high up and 

 sailing in great lazy circles but gradually working to the south. 

 Again, on October 16, 1910, we observed about a dozen under 

 the same circumstances as the above, mingled with a lesser 

 number of Red-tails and Red-shoulders. Thev remained very 

 high up and at times they even vanished from sight in the field 

 of our glasses. 



Acadian Owl. (Cryptoglaux acadica). 



The flight* of these diminutive little owls that we witnessed 

 on October 15, 1910, was one of the most interesting occurrences 

 of this kind that we have seen at the Point. In previous autumns 

 we had found feathery remains of individuals that had been 

 devoured by other larger birds of prey, but until this date we had 

 never seen live individuals on the Point. This day, however, a 

 few feathers scattered on the ground, caught our eyes and caused 

 us to institute a careful search of the red cedar thickets; we were 

 soon rew r arded by the discovery of a bird sitting close up to a tree 

 trunk and deep in the shadow of the concealing evergreen fronds. 

 Shortly after, another was found and then more. In all, twelve 

 birds were seen in time aggregating less than three hours. They 

 were so inconspicuous and difficult to find that these could have 

 made but a very small part of the birds that were present. We 

 worked but a small part of the likely territory and without doubt 

 the number of Acadian Owls present on the Point must have been 

 very great. Most seen were within from six to ten feet of the 

 ground and close up against the cedar trunks. They never 

 flushed unless the branch they were on happened to be shaken, 

 and sat so close and still that we were able to photograph one at 



* See Auk, July, 1911, pp. 329-334. 



