NATURAL HISTORY, TORONTO REGION 
20. Caspian Tern. Sterna caspia. Regular mi- 
grant, usually not common. 
21. Forster’s Tern. Sterna forsteri. Two records, 
possibly a regular migrant. 
22. Common Tern. Sterna hirundo. Regular mi- 
grant, sometimes common. 
23. Black Tern. Hydrochelidon migra surina- 
mensis. Regular migrant, sometimes common; rare 
breeder. 
Family ProcELLaRImDAE. 
24. Black-capped Petrel. Aestrelata hasitata. Ac- 
cidental, one record. 
Family Surmaz. 
25. Gannet. Sula bassana. Accidental, two rec- 
ords, one recent (Auk, 1913, p. 225). 
Family PHaLacRocoRVACIDAE. 
26. Cormorant. Phalacrocorax carbo. <Acci- 
dental, one record. 
27. Double-crested Cormorant. Phalacrocorax aur- 
itus auritus. Irregular migrant, not common. 
Family PELECANIDAE. 
28. White Pelican. Pelecanus erythrorhynchos 
Accidental; one taken (Auk, 1913, p. 225); several 
sight records. 
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