92 GOLDEN- WINGED SWAMP-WARBLER. 



Golden- winged Warbler, Sylvia crysoptera, Wils. Amer. Orn., vol. ii. p. 113. 

 Sylvia chrysoptera, Bonap. Syn., p. 87. 



Golden-winged Warbler, Sylvia chrysoptera, Nutt. Man., vol. i. p. 411. 

 Golden-winged Warbler, Sylvia chrysoptera, Aud. Orn. Biog., vol. v. p. 154. 



Male in spring. 



Bill shorter than the head, slender, conical, compressed toward the end, 

 tapering to an acute point; upper mandible with the dorsal line almost per- 

 fectly straight, being very slightly convex toward the end, the ridge narrow, 

 the sides sloping at the base, rounded toward the end, the edges a little 

 inflected, without notch, the tip acuminate; nostrils basal, oblong, opercu- 

 late; lower mandible with the angle rather short and obtuse, the dorsal line 

 straight, the sides convex, the edges inflected, the tip acuminate, the gape- 

 line nearly straight. 



Head of moderate size, ovate; neck rather short; body slender. Feet of 

 moderate length, slender; tarsus longer than the middle toe, much com- 

 pressed, covered anteriorly by seven scutella, posteriorly by two plates 

 meeting so as to form a very thin edge; toes small, much compressed; hind 

 toe comparatively large, lateral toes nearly equal, middle toe much longer; 

 claws moderate, well curved, much compressed, laterally grooved, acute. 



Plumage very soft and blended. Wings of moderate length, the second 

 quill longest, the third scarcely shorter, the first and fourth about equal, the 

 first with the outer web narrowed in its whole length, the next three toward 

 the end; secondaries long, rather narrow, rounded.. Tail rather long, nearly 

 even, the middle feathers being scarcely a twelfth of an inch shorter than 

 the lateral. 



Bill and feet black; iris brown. The general colour of the upper parts is 

 light ash-grey, of the lower white; the upper part of the head, and a patch 

 on the wing, formed by the first row of small coverts and the secondary 

 coverts, bright yellow; a band from the bill to the eye, continued under it, 

 and enlarging behind, so as to include the ear-coverts, together with the 

 throat, to the extent of about an inch, black; a white band from over the 

 eyes to behind the ears, and another from the lower mandible down the 

 side of the neck, enlarging as it proceeds; the sides under the wings very 

 pale ash-grey. The quills and tail-feathers are brown, edged with ash-grey; 

 the outer three feathers of the tail have a large portion of the inner web white. 



Length to end of tail 4$ inches, to end of wings 3^; extent of wings 7-f; 

 bill along the ridge jf, along the edge of lower mandible y§; wing from 

 flexure 2j S ; tail 2?; tarsus y|j hind toe T 3 2, its claw T \; middle toe, -/j its 

 claw T V 



Adult Female. 



The female resembles the male, but has the tints less bright, the sides of 



