LIST OF THE BIKUS OF EASTERN NORTH AxAIERICA. 321) 



A- o. u. Subgenus ACTOCHELIDON. Kaup. 



NO. 



41 (65) STERNA MAXIMA. Boud. Royal Tern. 



Southern Atlantic coast, Georgia, Florida, and Ihe Gulf States; casual in 

 summer, north to Massachusetts. 



42 (67) STERNA SANDVICENSIS ACUFLAVIDA. (Cauot.) Cabot's Tern. 



Southern coast of United States, West Indies, and Central America, north 

 to North Carolina in summer; accidental in New England. 



43 (68) STERNA TRUDEAUl. Aud. Trudeau's Tern. 



South American species ; stragglers have been taken on the Atlantic coast 

 of United States. 



44 (69) STERNA FORSTERI. Nutt. Forster's Tern. 



North America, in general ; in winter to West Indies and South America ; 

 breeds from Virginia to Manitoba. 



45 (70) STERNA HIRUNDO. Linn. Common Tern. " Mackerel Oull." 



Throughout eastern North America; breeds nearly througliout its range, 

 from Arctic Ocean to Florida; winters from Virginia southward. 



46 (71) STERNA PAR ADIS/EA. BrOnn. Arctic Tern. 



North America from Arctic Ocean to North Carolina ; breeds from Massa- 

 chusetts northward. 



47 (72) STERNA DOUQALLI. Montag. Roseate Tern. 



Southern coast of United States ; north in summer to New England ; acci- 

 dental in Nova Scotia. 



Subgenus STERNULA. Boie. 



48 (74) STERNA ANTILLARUM. (Less.) Least Tern. 



Southern coast of United States and northern South America ; in summer 

 north to New England ; accidental in Labrador ; breeds throughout 

 its. range. 



Subgenus ONICHOPRION. Wagler. 



49 (75) STERNA FULIQINOSA. Gmel. Sooty Tern. 



Semi-tropical species, common in the West Indies ; in summer north to 

 North Carolina ; accidental in New England. 



50 (76) STERNA AN/ETHETUS. Scoi'. Bridled Tern. 



Tropical species, accidental on Florida coast; South Carolina, one record. 



Genus HYDROCHELIDON. Boie. 



51 (77) HYDROCHELIDON NIGRA SURINAMENSIS. (Gmel.) Black Tern. 



North America ; breeds from Middle States in the interior northward to 

 the fur countries. 



52 (78) HYDROCHELIDON LEUCOPTERA. (Meisn. and Sciiinz.) White-winged 



Black Tern. 

 European species, of accidental occurrence in the United States ; Wis- 

 consin, one record. 



