8 University of Michigan 



abundant at Birchwood Beach September 2, 1917, when hun- 

 dreds were swimming off shore feeding on small minnows. 

 In 19 18 it was first seen May 14, when a flock of twelve were 

 resting on the piles of an old pier, and by May 16 and 17 

 hundreds were migrating northward. None were seen in 19 19 

 nor 1920. 



Chlidonias nigra surinamensis. Black Tern. — No doubt a 

 common migrant, although it was seen only in September, 

 191 7. September 2 a large number were feeding with a flock 

 of common terns mentioned above, and a few were seen by 

 Sherman September 4. 



Phalacrocorax auritus auritiis. Double-crested Cormorant. 

 — This rare migrant was seen only on May 4, 1918, when two 

 were noted near Birchwood Beach. 



Mergus serrator. Red-breasted Merganser. — Doubtless a 

 common migrant, although it was noted but once, May i, 

 1920, when the writer saw six at Warren Dunes. 



Anas ruhripes. Black Duck. — A common migrant and per- 

 haps a summer resident. From July 19 to September 11, 1917, 

 many were seen flying along the shore near Birchwood Beach, 

 but none were noted in May and June, 1918. 



QnerqncduJa discors. Blue-winged Teal. — A common 

 migrant. An adult was seen April 29, 1918, at Willow Brook 

 Pond and four others at Sawyer Pond May 4. 



Spatula clypcata. Shoveller. — A not common migrant. An 

 adult male was resting on a low pile at Birchwood Beach May 



9 and 10, 1918. 



Aix sponsa. Wood Duck.- — -A rather rare migrant and sum- 

 mer resident. A pair was seen on a small pond at Warren 

 Dunes May i, 1920. 



Marila aflinis. Lesser Scaup Duck. — A common migrant as 

 reported by hunters. May 5, 1918. a flock of twenty was seen 



