254 GEOLOGICAL SURVEY OF CANADA. 



nest on Lake Muskoka, Ont., regularly. Mr. Tavernier took a set 

 of four eggs from the nest on 24th May, 1898 ; it formerly bred on 

 the Bruce Peninsula. {J.H.Fleming.) On 15th April, 1894, saw 

 a pair that were breeding in a hole in the high " cut bank " of the 

 Saskatchewan at Medicine Hat, Assa. {Spreadborough.) 



This falcon constructs no nest whatever so far as I know. It 

 lays its eggs on the most inaccessible ledge of a river cliff 

 of earth or rock. Four is the usual number, and in some 

 instances the eggs were larger than in others. All of the dis- 

 covered nests were found in the country to the southward of the 

 post, and it is doubtful if they breed much beyond Lat. 68° north. 

 Early in August, for several successive years, young birds of the 

 season, fully fledged, but still attended by their parents, were 

 noticed alonjf the limestone and sandstone banks of the Mackenzie 

 River. {Macfarlane) 



This bird breeds rarely in eastern Ontario. I saw it in April, 

 1899, and the following year. A nest containing four eggs was 

 taken near the Blue Mountain, Leeds Co., Ont., by Mr. W. G. 

 Shelbourne. I visited the locality on the 23rd April, 1901, and 

 saw the birds but they had not yet laid their eggs. The nest was 

 secured later, on the 9th May, and it and the eggs are now in a 

 private collection in Kingston. The nest has also very recently 

 been found in the Muskoka Lake district, and when in Toronto 

 I saw the eggs from there. {Rev. C.J. Young.) 



I have eight clutches of eggs of this bird, taken in Muskoka and 

 northern Alberta. One set of 4 eggs was collected by P. A. Taver- 

 nier, at Muskoka Lake, May 22nd, 1898. The nest was on a ledge of 

 a cliff overhanging the water, 25 feet from the top of the cliff and 

 70 feet above the water. The nest was only a slight hollow on a 

 ledge 2 feet wide, the half-devoured remains of a ruffed grouse 

 and pileated woodpecker were lying on the ledge near the nest. 

 Mr. Wenman has collected for me two sets of eggs on the banks of 

 Blindman's River, Alberta. There was no nest in either case, the 

 eggs being simply laid on the gravel. A pair nest on Scarboro 

 cliffs seven miles west of Toronto and three miles from my house 

 but the nest is inacessible. {W. Raine.) 



MUSEUM SPECIMENS. 



Three ; two procured at York Factory, Hudson Bay, by Dr. 

 R.Bell. Anothertaken at Edmonton, Alta., by W. Spreadborough, 

 May 1.5th, 1897. 



