FAMILY MOTACILLIDAE 



191 



Description. — Length 106-118 mm. Adult (sexes alike), crown, 

 back, and wings blackish brown, with feathers edged yellowish or pale 

 cinnamon-buff; rump and upper tail coverts tawny-olive; tail blackish 

 brown, with outer two rectrices dirty brownish white, inner of these 

 with brown edge to inner web, and next rectrix sometimes with whitish 

 edge to outer web; lores and eye-ring pale buff; side of face speckled 

 pale cinnamon and brown; throat yellowish white; breast streaked with 

 dark brown and tawny-olive, sometimes extending on flanks; rest of 

 undersurface yellowish white to buffy; underwing coverts buffy cin- 

 namon and white. 



Juvenile similar, but upper parts spotted with pale brown; undersur- 

 face brownish white, streaked on breast, narrowly on sides. 



A female taken January 22, 1963, at Penonome, Code, had the iris 

 brown; maxilla and tip of mandible fuscous-black; base of mandible 

 brownish flesh color; tarsus and toes light buffy brown; claws dark 

 mouse brown. 



Figure 16. — Yellowish Pipit, Bisbita Amarillenta, Anthiis latescens parvus. 



Measurements. — Males (10 from Chiriqui, Herrera, and Province 

 of Panama), wing 58.0-61.1 (59.7) , tail 41.3-45.6 (43.6), culmen from 

 base 10.3-12.5 (11.6), tarsus 18.3-20.4 (19.3) mm. 



Females (8 from Chiriqui, Code, Herrera, and Province of Pan- 

 ama), wing 56.7-60.5 (58.1), tail 40.8-44.3 (42.8), culmen from base 

 10.2-11.9 (11.3), tarsus 19.2-20.8 (19.7) mm. 



Resident. This is a rather common though locally distributed bird 

 in short grass savannas and fields in lowlands on the Pacific slope of 

 western and central Panama. I have collected the bird at Las Lajas in 



