250 



BIRDS OF THE REPUBLIC OF PANAMA PART 4 



are from the Subtropical Zone forests of Chiriqui, at Santa Clara, Bar- 

 riles, and Pefia Blanca, above Boquete. Arce obtained it in Veraguas at 

 Santa Fe and Chitra. I have 1 from El Uracillo, on the Caribbean slope 

 of Code, and there is 1 in the British Museum collected by McLeannan 

 along the Panama Railroad. Specimens have been taken from October 

 12 (1938, Pena Blanca, Chiriqui) to March 16 (1954, Santa Clara, 

 Chiriqui; 1927, Puerto San Antonio, Panama) and April 8 (1963, 

 Almirante, by Olson). Netting at Almirante extends early and late 

 dates from September 24, 1964, to April 17, 1965 (D. Hicks), and an 

 extreme date of April 23, 1963 (Loftin, Carib. Journ. ScL, 1963, p. 

 154). 



A Worm-eating Warbler banded October 21, 1963, at Almirante, 

 Bocas del Toro, was recaptured there on January 8, 1964 (Loftin et al., 

 Bird-Banding, 1966, p. 41). Another individual caught in a mist net 

 on the Chiva Chiva Road in the Canal Zone on December 15, 1968, 

 weighed 12.9 g. 



VERMIVORA CHRYSOPTERA (Linnaeus): Golden-winged Warbler, 

 Reinita Alidorada 



Motacilla chrysoptera Linnaeus, Syst. Nat., ed. 12, vol. 1, 1766, p. 333. (Philadel- 

 phia, Pennsylvania.) 



Small; crown yellow; yellow patch on wings; rest of upper surface 

 gray; face and throat black or gray; undersurface white. 



Description. — Length 107-120 mm. Adult male, superciliary and 

 cheek patch white; crown bright yellow; a large black patch covering 

 orbital area and ear coverts; stripe on side of face white; most of mid- 

 dle and greater wing coverts, forming a large yellow patch; tail gray 

 with extensive white patch on inner web of outer three pairs of rec- 

 trices; throat black; sides of breast and flanks light gray, rest of under- 

 surface white; underwing coverts white. 



Adult female, like male, but crown sometimes tinged with olive- 

 green; rest of upper surface varying from entirely gray to heavily suf- 

 fused with olive-green; areas of face and throat that are black in male 

 are gray in female. 



Measurements. — Males (10 from Panama), wing 55.5-65.8 (61.3), 

 tail 44.4-51.7 (48.4), culmen from base 12.2-13.8 (12.9), tarsus 15.6- 

 17.9 (16.7) mm. 



Females (10 from Panama, Costa Rica, and Colombia), wing 57.0- 

 61.2 (58.4), tail 42.7-51.9 (46.6), culmen from base 11.8-13.9 (12.4), 

 tarsus 15.5-18.6 (17.1) mm. 



Migrant and winter visitor from the north. It winters from Guate- 



