302 BIRDS OF THE REPUBLIC OF PANAMA PART 4 



WILSONIA CITRINA (Boddaert): Hooded Warbler, 

 Reinita Encapuchada 



Muscicapa citrina Boddaert, 1783, Tabl. Planches Enlum., p. 41. (Louisiana.) 



Small; face yellow; hindcrown, sides of neck, and throat black; rest 

 of upper surface olive-green; rest of lower surface yellow. 



Description. — Length 118-132 mm. Adult male, forehead, fore- 

 crown, and side of face to auriculars bright yellow; loral spot, re- 

 mainder of crown, nape, sides of neck, throat, and upper breast black; 

 rest of upper surface olive-green; remiges dusky, with outer web 

 edged olive-green; two outer pairs of rectrices nearly all white on 

 inner web, dusky on outer web; next pair with white spot on inner 

 web; remaining rectrices dusky, with outer web edged olive-green; 

 rest of undersurface yellow, fading to very pale yellow on under- 

 tail coverts; bend of wing yellow; underwing coverts white. 



Adult female, upper surface olive-green; wings and tail as male, but 

 duller; lores, superciliary, side of face bright yellow, with auricular 

 region tinged greenish yellow; undersurface bright yellow, becoming 

 paler on undertail coverts. 



Measurements. — Males (10 from the breeding range, taken in May 

 and June), wing 62.1-70.0 (66.6), tail 53.2-58.1 (55.3), culmen from 

 base 10.7-12.8 (11.6), tarsus 17.9-20.5 (19.3) mm. 



Females (10 from the breeding range, taken in April, May, and 

 June), wing 60.5-65.0 (62.5), tail 50.8-56.5 (54.5), culmen from base 

 10.5-12.0 (11.2), tarsus 18.6-19.8 (19.1) mm. 



Winter visitor from the north. Breeds in eastern United States; 

 winters through Middle America to central Panama. Rare in the low- 

 lands of western Bocas del Toro ( Almirante) and the Canal Zone area. 

 An adult male was reported seen by N. G. Smith in "late September" 

 1964 and another in Panama City in his garden on May 2, 1968 (in litt. 

 to Eisenmann) . McLeannan evidently encountered this species at least 

 twice in what became the Canal Zone, since specimens collected by him 

 are now in the British Museum (Salvin and Godman, Biol. Centr.- 

 Amer., Aves, vol. 1 (pt. 12), 1881, p. 167) and the American Museum 

 of Natural History (Lawrence, Ann. Lyc. Nat. Hist. New York, vol. 

 8, 1863, p. 6). More recently in the Canal Zone, Gale and West (in 

 litt.) banded, photographed, and released a male at Corozal on October 

 27, 1973, and T. A. Imhof (in litt.) found 1 at Cano Saddle on Decem- 

 ber 29, 1942. A male was seen on Barro Colorado Island on September 

 24, 1951, and another on January 5, 1977 (Willis and Eisenmann, 

 Smiths. Contrib. Zool. 291, 1979, p. 27). In Bocas del Toro only 3 or 

 4 were banded in two seasons (October 12-30) at Almirante (Loftin, 



