WARBLERS AND ALLIED SPECIES. 317 



length ; claws long, moderately arched, extremely compressed, 

 laterally grooved, very acute ; wings of moderate length, a lit- 

 tle curved, the first quill a fifth of the length of the second, 

 which is about the length of the third ; tail rather long, 

 straight, rounded. 



1 . Calamokerpe phragmitls. Sedge ReedUng. Tail slightly 

 rounded ; feathers of the head brownish-black, edged with light 

 brown, the back light olive-brown, spotted with dusky, the 

 rump reddish-brown, the tail-coverts unspotted. 



2. Calamoherpe arundinacea. Marsh ReedUng. Tail con- 

 siderably rounded ; upper parts olive-brown, unspotted. 



GENUS VI. SIBILATRIX. CHIRPER. 



Bill of moderate length, straight, very slender, much com- 

 pressed toward the end, its outlines nearly straight ; tarsi rather 

 long, extremely compressed ; claws rather long, moderately 

 arched, extremely compressed, very acute ; wings of moderate 

 length, a little curved, broad, the first quill about a fourth of 

 the length of the second, which is a little shorter than the third, 

 the secondaries rounded ; tail rather long, and much gra- 

 duated. 



1. Sihilatrix Locustella. Grasshopper Chirper. Upper parts 

 dull olive-brown, with oblong dusky spots, lower pale yellowish- 

 brown, the fore-neck with a few dusky lines. Young yellowish- 

 brown, spotted with dusky above, brownish-yellow beneath. 



GENUS VI. REGULUS. KINGLET. 



Bill shortish, straight, very slender, flattened at the base, 

 compressed towards -the end, acute, its outlines almost straight, 

 the upper mandible destitute of notch ; toes rather large ; 

 claws long, arched, acute, wings of ordinary length, concave, 

 rounded ; the first quill very small, the fourth and fifth longest, 

 but scarcely exceeding the third ; tail of moderate length, 

 curved at the base, narrow, emarginate. 



1 . Begulus auricapillus. Gold-crested Kinglet. Top of the 



