52 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I50 



Immature, above, including head and neck, dark gray; below 

 white, with sides streaked with brownish gray. 



Measurements. — Males (28 specimens from the United States), 

 wing 500-550 (526), tail 123-158 (136), culmen 280-348 (319), 

 tarsus 70-89.4 (80.5) mm. 



Females (23 specimens from the United States), wing 483-528 

 (501), tail 122-153 (136), culmen 280-333 (294), tarsus 68-83.7 

 (75.7) mm. 



Fig. 10. — Brown pelican, alcatraz, Pelecanus occidentalis carolinensis. 



Iris yellow; bare skin around eye bluish gray; bill dull gray to 

 grayish white spotted irregularly with orange, with the tip of the 

 maxilla and distal half of the mandible dull black, the whole with 

 more or less grayish white exfoliation ; pouch dull grayish brown to 

 olive brown ; cms, tarsus, toes, and claws black. 



Resident. Common along the Caribbean coast; more abundant 

 along the Pacific, especially in Panama Bay. The recorded breeding 

 colonies are as follows: Isla Iguana, on the coast of Los Santos 

 above Punta Mala; islas Pacheca, Pedro Gonzalez, Seiiora, and 

 Galera in the Archipielago de las Perlas; Isla Bona, Isla Chame, 



