SABINE GULL. 



62. Xema sabini. 14 in. 



In summer with gray hood, black collar 

 about the neck, pearl-gray mantle and black- 

 ish outer primaries with white tips. In win- 

 ter, without the hood or collar, but with gray 

 on the ears and nape. 



Range. Breeds from northern Alaska and 

 Hudson Bay northward. Winters in Peru, 

 migrating along both coasts and rarely in 

 the interior. 



GULL-BILLED TERN. 



63. Gelochelidon nilotica. 14 in. 



Bill and feet black, the former heavy for 

 a tern. Crown black. Mantle pearl-gray. 

 Tail very slightly forked. 



Note. A high-pitched, reedy tee-tee-tee. 



Nest. A slight depression in marsh grass 

 or on beaches. Three olive-gray eggs with 

 black and brown markings. 



Range. Breeds on the South Atlantic and 

 Gulf coasts. Wander casually to Me. and 

 Ohio. Nearly cosmopolitan in distribution. 

 19 



