List of Birds Found Within Fifty Miles of the American 

 AlrsEUM OF Natural Histokv, New York City.^ 



Order PYGOPODES. Diving Birds. 

 Family COLYMBID/E. Grebes. 

 Holbcell's Grebe (Colymbus HolbalU). A rather uncommon spring and 

 fall migrant and less common winter resident. 



^orn^d. GrehG (Colymbus aiiritus). A common spring and fall migrant 

 jind not uncommon winter resident. 



*Pied-billed Grebe ; Diedapper ; Dabchick ; Hell Diver (Podilyinbus 

 ('Odiccps). Occurs chiefly as a migrant. In northern New Jersey and the 

 Lower Hudson Valley it is common, hnt on Long Island is of "comparatively 

 rare and infrequent occurrence" (Butcher. MS). During favorable seasons 

 a few pass the winter here. I know of no definite instance of its breeding. 

 (See group, second floor of Museum). 



F.AMiLY GAVIID.t. LooNs. 

 Loon iGaria linbcr). A common migrant and less crmmon winter resi- 

 dent. (See group, second floor). 



Fig. I. Loon. 



Black-throated Loon {Gcwia arctica). Breeds in the far north, migrat- 

 mg southward to southern Canada. The only record of its occurrence near 

 New York is based on an adult male (Coll. Am. Mus. No. 64.610) taken April 

 29. 1893, between Sands Point and Execution Lighthouse, L. L (Butcher. Auk, 

 X, 1893, p. 265). 



Red-throated Loon (Gavin himme). A not uncommon winter resident, 

 hut more frequently found during the migrations. 



1 Issued also in separate form as Guide Leaflet, No. 22. 



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