22 THE CHICAGO ACADEMY OF SCIENCES. 



All persons who are interested in the study of birds within 



the limits of our region, should be watching for the following 



species which are liable to visit the area : 



The Pomarine Jaeger (Stercorarius pomarinus) which is 



known to visit the Great Lakes in the winter. 



The Parasitic Jaeger (Stercorarius parasiticus) which is 



known to have visited Lake Michigan in our vicinity during the 



winter. 



The Cackling Goose (Branta canadensis minima), a small 



western species, has been observed in Wisconsin, Illinois and 



Michigan. These geese are Pacific coast birds, breeding in the 



far north and migrating southward in winter to California and 



sometimes eastward at least to the Mississippi Valley. I have 



taken five of these birds at Meredosia, Illinois. 



The following species may also very rarely visit our area, as 



specimens have been taken near us or have been known to visit 



the Great Lakes : 



Hudsonian Chickadee (Parus hudsonicus). 



Water-thrush (Seiurus noveboracensis) . This species was re- 

 ported by Mr. Robert Kennicott, in his "Catalogue of Animals 

 Observed in Cook County, Illinois." This was published 

 during the year 1855, and since that time some of the birds 

 then included under- this specific name have been placed 

 in a variety known as Grinnell's Water-thrush under the 

 varietal name notabilis. As the variety has been known to 

 frequent our area, I am inclined to think that the birds ob- 

 served by Mr. Kennicott and others belong to this variety 

 which was given its name in 1880, several years after the time 

 of his investigations. 



Canada Jay (Perisoreus canadensis), specimens of which were 

 observed by Dr. Hoy in southern Wisconsin. 



Iceland Gull (Larus leucopterus) . This species is known to 

 frequent the Great Lakes during the winter, and is also known 

 to pass even further south. 



King Eider (Somateria spectabilis} is known to occasionally 

 visit the Great Lakes. It has also been reported from Iowa 

 and northern Ohio. 



The Ruff (Pavoncella pugnax) has been recorded from English 

 Lake, Indiana, by Mr. Ruthven Deane (Auk, XXII, October, 

 1905, p. 410) and should be looked for among the shore 

 birds which visit our lakes. 



