126 THE WILSON BULLETON No. G4. 



there is no apparent reason why it might not have formed a per- 

 manent colony, especially as there is another old report of the 

 bird from the not distant locality of Chatham. 



Taking into consideration the irregular and intermittent char- 

 acter of the work done on the Point, the number of rarities 

 there taken is significant. Such rare, irregular, or wandering 

 species are far more apt to be seen on a main branch of the mi- 

 grational current than along a small side stream or dead water 

 bayou. In this list can be placed : 



Buff-breasted Sandpiper, Hudsonian Godwit, Chuck-wills- 

 widow,Henslow's Sparrow, Blue-winged Warbler, Prairie 

 Warbler, Short-billed Marsh Wren, Mockingbird, Olive-sided 

 Flycatcher, Duck Hawk, and Pigeon Hawk. Of these the 

 Chuck-wills-widow and the Blue-winged Warbler form primal 

 records for the Province and the Mockingbird the only absolute- 

 ly incontestable one for that species. All these throw into 

 prominence the importance of the locality as an ornithological 

 observatory. 



The absence of some species has been of almost as much in- 

 terest as the presence of others. Among the most striking of 

 these are the following : 



Yellow-throated Vireo. 



This is a very common summer resident and migrant along 

 the whole southeastern shore of Michigan. It is rare on 

 the Point and has only been noted occasionally. It increases in 

 numbers again to the eastward and seems to reach its centre of 

 abundance in Ontario about London where, however, it is but 

 fairly common. 



Tufted Titmouse. 



This species is a more" or less regular and not uncommon 

 fall, spring, and winter visitor along the Michigan boundary 

 line as far as the St. Clair Flats. On Belle Isle, in the Detroit 

 river opposite the City of Detroit, it occurs commonly every 

 winter, and likely nests sparingly all over this district, though, 

 so far an Ann Arbor record (Auk, 1908-322) is the only affirm- 

 ative data we have on the subject. As yet there are no On- 

 tario records for the species at all, although it must almost nec- 

 essarily sometimes wander over across the international bound- 



