ECOLOGY OF NORTHERN MICHIGAN. 



65 



Superior. A Loon was once seen on Carp Lake and a Pied-billed Grebe 

 was seen on Little Carp Lake. The only water bird found on the rivers 

 was the Hooded Merganser which was taken on Carp river. 



Although not an aquatic bird, I will mention the Osprey here as it was 

 seen flying over the water. It was first seen near the mouth of Union river 

 and afterwards over Carp Lake. It would circle around above the water 

 until it saw a fish and then it would plunge into the water after it. As far 

 as observed most of these efforts were successful. 



2. Birds Frequenting Shores and Banks of Streams. Shore birds were 

 most abundant along Carp and Little Carp rivers; only a few were seen on 

 the lake beaches. The Solitary Sandpiper was the only one seen in all the 



FIG. 19. Carp river, station IV, showing zones of vegetation on the mud flats 



The only bird confined to the alders was the Alder Flycatcher, but several 

 others, of limited distribution, were found here, such as the Redstart, Swamp 

 Sparrow, Mourning Warbler, Olive-backed Thrush, Black-billed Cuckoo, 

 Least Flycatcher, Song Sparrow, and Water Thrush. 



The Redstart was rather common here and among the cedars near the 

 shore of Lake Superior (Station II. 1) and was also seen along Little Iron 

 river. It seems to keep near water and near the ground, as it was very 

 seldom seen in the high trees. 



The Mourning Warbler was found here, but also in the bushes of the camp 

 clearing, and along the path to the lake in the cedar swamp (Station II. 1). 

 -Thus it is seen that this bird is not usually found in thickly forested woodland 

 but is more decidedly a bird of the bushes or thickets. 



The Olive-backed 'Thrush was found on the mountain top, in the river 



