Occasional Papers of the Museum of Zoology 7 



tember 8, 1917. April 27, 1918, three were seen near the same 

 beach catching small shore minnows. May i, 1920, the writer 

 noted six at the beach of the Warren Dunes. 



Podilyinbus podiccps. Pied-billed Grebe. — This species was 

 noted as a migrant only, although it may breed on the inland 

 waters of the county. One was seen near the shore at Birch- 

 wood Beach May 9, 19 18. 



Gavia immer. Loon. — A rather common migrant. July 20, 

 1917, two were seen on the Lake at Birchwood Beach, and 

 May 15, 1918, one was noted at the same beach. The species 

 was not noted at the Warren Dunes in 1920. 



Larus argentatus. Herring Gull. — This is a very common 

 migrant along the lake shore. It was first seen at Birchwood 

 Beach July 20, and became common after September i, 19 17. 

 In 1918, from April 2/ to June i, many were seen feeding on 

 the beach and in high winds sailing against it over the dunes. 

 April 30, 1920, the writer saw a hundred or more at the beach 

 at Warren Dunes. 



Larus dclaivarcnsis. Ring-billed Gull. — This species is a 

 rare migrant. It was observed at Birchwood Beach from 

 September 4 until September 10, 1917- x\t the Warren Dunes 

 it was seen May 24, 1920. 



Larus Philadelphia. Bonaparte's Gull. — Doubtless a com- 

 mon migrant. A few were seen September 4, 1917; at Birch- 

 wood Beach, and at Warren Dunes May i, 1920. 



Sterna caspia. Caspian Tern. — Four specimens of this rare 

 migrant were seen September 9, 1917, at Birchwood Beach, 

 and two noted May 8, 1918. After these dates a few others 

 were occasionally seen in company with herring gulls flying 

 along the shore or resting on the sandy beach. 



Sterna hirimdo. Common Tern. — This common migrant 

 Avas seen on July 24 and August 26, 19 17. The species became 



