BIRDS WHOSE NIDIFICATION IS UNKNOWN. 95 



TROGON AMBIGUUS Gould. 



Coppery-tailed Trogon. 



ACTODROMAS COOPERI (Baird) Coues. 



Cooper's Sandpiper. 

 PELIDNA ALPINA AMERICANA Cass. 



Red-backed Sandpiper. 



HETEROSCELUS INCANUS (Gmel.) Coues. 



Wandering Tattler. 



DENDROCYCNA FULVA (Gmel.) Bukm. 



Fulvous Tree Duck. 



CAMPTOLJEMTJS LABRADORIUS (Gmel.) Gray. 



Labrador Duck. 



PHALACROCORAX MEXICANUS (Brandt) S. and S. 



Mexican Cormorant. 



PHALACROCORAX PEISTICILLATUS (Br'dt) Heerm. 



Brandt's Cormorant. 



PHALACROCORAX PERSPICILLATUS Pall. 



Pallas's Cormorant. 



RHODOSTETHIA ROSEA (Macgill.) Bruch. 



Ross's Gull. 



STERNA ELEGANS Game. 



Elegant Tern. 



STERNA TRUDEAUI Aud. 



Trudeau's Tern. 



STERNA ANJSSTHETA Scop 



Bridled Tern. 



OSSIFRAGA GIGANTEA (Gm ) Reich. 



Giant Fulmar. 

 PRIOCELLA TENTTIROSTRIS (Aud.) Ridgw. 



Slender-billed Fulmar. 



