CORMOEANTS. 77 



48. DOUBLE-CRESTED CORMORANT. 

 Differs from last in being smaller, 32 

 in having no white patches any where, and 

 with white filamentous feathers over the eye 

 in spring. Young, not as white beneath. 

 Gula sac, orange ; bill and feet, black, figs. 

 47-48. Our common species in New Eng. 

 land ; frequent in migration in Sept., Oct. 

 and April, off the coast or crossing headlands. 

 Occasionally seen on fresh waters. Winters 

 from N. E. south through the Gulf States. 

 Breeds from the Bay of Fundy, the Great 

 Lakes, Minn., and Da. northward in May. 



49. FLORIDA CORMORANT. 



Smaller, 30, seldom has white feathers 

 over eye. Resident in South -Atlantic and 

 Gulf States, breeding chiefly in April ; wan- 

 dering occasionally as far north as 111. Very 

 common ; also occurs on the Bahamas. 



50. MEXICAN CORMORANT. 



Small, 26, browner than the others, 

 more slaty on back, white line adjoining gu- 



