FAMILY PARULIDAE 



283 



by Gatun Lake) . The record, therefore, is to be attributed to the Canal 

 Zone (see Wetmore, Auk, 1958, pp. 467-468). This species migrates 

 through the West Indies and is only of accidental or, at most, casual 

 occurrence in Middle America. 



Eisenmann (Smiths. Misc. Coll., vol. 117, no. 5, 1952, p. 51) de- 

 scribes 2 sight reports for this species on Barro Colorado Island: "Dr. 

 A. A. Allen writes that November 6, 1944, he observed one 'close 

 enough so that I had no trouble seeing the light-colored legs and white 

 under tail coverts.' Mrs. G. G. Fry writes that on February 8 and 9, 

 1950 she heard a song which she recognized as that of this species, and 

 that one of the members of her party, Mrs. L. J. Francke, saw the bird 

 and said it was a male in spring plumage." Ridgely comments, how- 

 ever, that some autumn Bay-breasted Warblers have the characters 

 Allen noted and that in February Blackpoll Warblers are not in "spring 

 plumage" or likely to be singing. On October 19 and 29, 1964, indi- 

 viduals identified as this species by D. L. Hicks were banded and re- 

 leased at Almirante, Bocas del Toro (Ridgely, 1976, p. 297). There 

 are 2 recent sightings from Costa Rica, in December 1977 and January 

 1975 (Stiles and Smith, Brenezia, vol. 17, 1980, p. 151), and a speci- 

 men was collected there by F. G. Stiles in "fall" of 1980 (in litt. to 

 Eisenmann) . 



DENDROICA PALMARUM PALMARUM (Gmelin): Palm Warbler, 

 Reinita del Palmar 



Motacilla pahnarum Gmelin, 1789, Syst. Nat., 1(2), p. 951. (Santo Domingo.) 



Small; upper surface brown; undersurface buffy with fine brown 

 streaks, yellow on undertail coverts and sometimes on throat. 



Description. — Length 109-126 mm. Adult (sexes alike), crown and 

 back olive-brown, finely streaked with darker brown; forecrown be- 

 coming russet by March; rump and upper tail coverts yellow; wing 

 coverts blackish brown, tipped buffy brown; remiges blackish brown, 

 with outer web of primaries narrowly edged yellow, and outer edges of 

 secondaries broadly edged buffy brown; rectrices blackish brown with 

 large white patch on inner web of outermost pair and small white patch 

 on next pair; superciliary whitish, becoming yellow by March; orbital 

 ring whitish; undersurface whitish or olive-buff, finely streaked with 

 brown on breast and sides of throat; undertail coverts lemon yellow; 

 throat becomes lemon yellow by March, rest of undersurface sometimes 

 tinged yellow as well. 



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



