284 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 150 



Iris dark brown ; cere greenish yellow ; bare orbital region brighter 

 yellow; base of mandible neutral gray; rest of bill black; tarsus and 

 toes yellow ; claws black. 



Fig. 49. — Bat falcon, halcon cazamurcielagos, Falco rufigularis petoensis. 



Measurements. — Males (9 from Panama), wing 180-191 (185.2), 

 tail 86.8-96.2 (90.4), culmen from cere 10.8-12.1 (11.5), tarsus 

 31.6-33.8 (32.7), middle toe with claw 35.5-37.8 (36.4) mm. 



Females (4 from Panama), wing 209-221 (214.7), tail 97.8- 

 106.5 (103.0), culmen from cere 13.8-14.6 (14.2), tarsus 34.6- 

 39.0 (37.0), middle toe with claw 38.4-42.0 (40.8) mm. 



Resident. Locally fairly common, throughout the Tropical Zone. 

 Recorded in Chiriqui in the uplands to Boquete and the Cordillera 



