38 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I50 



PUFFINUS LHERMINIERI LOYEMILLERI Wetmore 



FiGXJRE 7 



Puffinus Iherminieri loyemilleri Wetmore, Proc. Biol. Sec. Washington, vol. 72, 

 April 22, 1959, p. 19. (Tiger Rock, Tiger Cays, off Cabo Valiente, Bocas 

 del Toro, Panama.) 



Characters. — Like P. I. Iherminieri but smaller. Tail longer than in 

 P. I. suhalaris, 80 millimeters long or more, and flanks white. 



Measurements. — Males (6 specimens), wing 185-193 (188), tail 



Fig. 7. — Audubon's shearwater, pardela chica, Puffinus Iherminieri, at entrance 



of nesting burrow. 



80.7-87.7 (85.2), culmen from base 27.1-30.1 (29.3), tarsus 38.4- 

 39.8 (39.3) mm. 



Females (5 specimens), wing 185-195 (190), tail 82.8-88.5 (86.3), 

 culmen from base 27.7-31.2 (29.2), tarsus 38.2-40.0 (39.0) mm. 



Resident. Breeds on Tiger Rock in the Tiger Cays at the end of 

 the Valiente Peninsula, Bocas del Toro; recorded off the nesting 

 colony and at Puerto Obaldia, Comarca de San Bias. 



The Tiger Cays lie in line from 3,000 meters north to 5,000 meters 

 northwest of Cabo Valiente. The outermost, nearly submerged 

 rock, is called Tiger Breaker on the sailing chart (no. 5029, Laguna 

 de Chiriqui). Next is a higher rock bearing a navigation beacon, 

 which is designated Tiger Rock on the chart, and then comes a 

 slightly larger islet that is not named. Following this to the east is 



