HYPOLAIS OPACA. 65 



46. Hypolais polyg-lotta (Vieillot). The Short- wing-ed Yel- 

 low Tree-Warbler. 



Spanish. Almendrita de verano. 



" Arrives and crosses to Europe in April, returning in August 

 and September, many remaining to nest around Tangier." 

 Fav ier. 



This Yellow Warbler is exceedingly plentiful near Gibraltar, 

 being one of the latest of the spring arrivals ; the first observed 

 was on the 25th of April, and the earliest date on which eggs 

 were found was on the 14th of May. The birds frequent trees 

 and bushes, especially willows and sallows ; and the nest, neatly 

 built and cup-shaped, in a great measure composed of sallow- 

 cotton and thistle-down, is placed in bushes, and usually contains 

 four pinkish-tinged eggs, marked with blackish spots. 



This bird was figured by Yarrell as the Melodious Willow- 

 Warbler (H. icterina), a slightly larger species. 



First primary small, but longer than the primary coverts ; in H. icterina 

 it is scarcely as long, but the wing is longer. 



Above olive-green ; below lemon-yellow ; lores yellow ; secondaries 

 broadly margined with buffish white. The inside of the mouth bright 

 orange-yellow. Length 4 inches. 



47. Hypolais opaca (Lichtenstein) . The Western Pallid 

 Warbler. 



" This Warbler is nearly the same in size as H. polyglotta, 

 but somewhat larger, and identical with that bird in habits, 

 times of arrival and departure, and also in manner of nesting. 

 They build on trees, bushes, and small plants, laying in May or 

 the beginning of June." Favier. 



This Pallid Warbler is the latest of all the spring migrants 

 that arrive in Anclalucia, being a little later than H. polyglotta. 

 They are much more plentiful eastward of Gibraltar than in the 

 immediate vicinity, where they are rare. Another species, 



F 



