BIEDS WHOSE NIDIFICATION IS UNKNOWN. 95 



TROGON AMBIGTTTTS Gould. 



Coppery-tailed Trogon. 

 ACTODROMAS COOPERI (Baird) Coues. 



Cooper's Sandpiper. 



PELIDNA ALPINA AMERICANA Cass. 



Red-backed Sandpiper. 



HETEROSCELTJS INCANTJS (Gmel.) Coues. 



Wandering Tattler. 



DENDROCYCNA FtTLVA (Gmel.) Burm. 



Fulvous Tree Suck. 



CAMPTOL.SJMO'S LABRADORITTS (Gmel.) Grat. 



Labrador Duck. 



PHALACROCORAX MEXICANTTS (Brandt) S. and S. 



Mexican Cormorant. 



PHALACROCORAX PENICILLATUS (Br'dt) Heerm. 



Brandt's Cormorant. 



PHALACROCORAX PERSPICILLATUS Pall. 



Pallas's Cormorant. 



RHODOSTETHIA ROSEA (Macgill.) Bruch. 



Ross's Gull. 



STERNA ELEGANS Gamb. 

 STERNA TRUDEAUI Aud. 

 STERNA AN.3ISTHETA Scor 

 OSSIPRAGA GIGANTEA (Gm ) Reich 



Elegant Tern. 



Trudeau's Tern. 



Bridled Tern. 



Giant Fulmar. 

 PRIOCELLA TENUIROSTRIS (Aud.) Kidgw. 



Slender-billed Fulmar. 



