278 GEOLOGICAL SURVEY OF CANADA. 



at St. Martins, on the Bay of Fundy, N.B. (Chamberlain.) One 

 old bird and two young ones shot on Marble island, Hudson bay, 

 ist September, 1884. (Dr. R. Bell.) Said to nest on the cliffs along 

 the Humber river, Newfoundland. (L. H. Porter.) 



Yamaska mountain, at Abbottsford, about forty miles east of 

 Montreal, has been a breeding place for this species for many years. 

 Mr. Fisk reports that a pair of these hawks had a nest on the west 

 side of the mountain, and he has observed this species there every 

 year for forty years past. He took two eggs of the duck hawk in 

 April, 1 89 1, there, from under a rocky ledge; no material was used 

 for the nest, only a slight hollow scratched out by the hawks under 

 a shelving rock. (Wintle.) A pair nest on Lake Muskoka, Ont., 

 regularly. Mr. Taverner took a set of four eggs from the nest on 

 24th May, 1 898 ; it formerly bred on the Bruce peninsula. (/. 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, 

 Sask. (Spreadhorough.) 



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

 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 discovered 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 along the limestone and sandstone banks of 

 the Mackenzie river. (Macfarlane.) Bishop and Osgood saw many 

 nests on cliffs along the Yukon river. 



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. Shel- 

 bourne. 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. It also breeds at Diamond lake, 

 in North Hastings, Ont., and was still breeding at Charleston lake, 

 Leeds co., in 1905. (Rev. C. J . Young.) 



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

 northern Alberta. One set of four eggs was collected by Mr. P. A. 



