1916] The Ottawa Naturalist. 145 



localities under P. serpentaria may belong here. The distri- 

 bution of P. trijoliata is therefore restrictive as regards the pos- 

 sible occvirrence of P. niainensis. 



Moreover, P. racemosa is a riverside and prairie species, 

 and P. trijoliata a plant with xerophytic preferences, so that 

 the two are rarely to be met together, except in such habitat 

 as the halophytic, or more exactly the semi-halophytic, where 

 water is to be found, but which at the same time is physio- 

 logically dry. 



BIRDS OF ALGONQUIN PARK.* 



By W. E. Saunders, London, Ont. 



On August 11th, 1915, Mr. E. M. S. Dale and the writer 

 started from Joe Lake on an investigation of the birds and 

 mammals, chiefly the foriner, of Algonqtiin Park. It is pro- 

 bably unnecessary to give any description of the character of 

 the country, in which spruce, pine, poplar and birch alternate, 

 as is usual in the northern parts of Ontario. 



The fauna of this region should be more northern than 

 would be called for by latitude only, because of the altitude, 

 which is nearly two thousand feet. 



After packing our dunnage in bags and loading it into the 

 canoe, we got away to a favorable start. During the first day 

 we saw nothing of moment until we reached Island Lake, where 

 our ears were assailed by the calling of two hawks, which proved 

 to be Goshawks. Their calls were of rather a peculiar char- 

 acter. They were in descending thirds, as is the case with the 

 Marsh Hawk, and more particularly the Sharpshin, but they 

 had two different calls. In one the phrases werejrepeated about 

 every second and a half, and in the other, which was about 

 half an octave higher, they were repeated about four times each 

 second. We paddled over near where they were sitting in some 

 dead timber, and one of them flew over us with a scissor- 

 tail eft'ect, opening and shutting the tail. 



The first night's trapping for mice yielded nothing but 

 one Sorex personatus and several of the northern deer mice. 

 While passing over the portage and through the Otter Slide 

 lakes it rained so hard that we vSOught shelter at the point 

 where the creek leaves for White Trout lake, and spent the 

 night in a tumbledown lutnberman's building. Next morning 

 we had a call from an Olive-sided Flycatcher, of which we 



*Read at the December meeting of the Mcllwraith Ornithological Club. 



