WOOD WARBLERS. ' 355 



the outer vano of the outer feather white at the base ; a yellow line over the 

 eye ; lores and a ereseent below the eye black ; under parts bright yellow ; 

 sides heavily streaked with black. Ad. 9 .—Similar, but with less, and some- 

 times no chestnut-rufous in the back. Im. — Upper parts uniform ashy olive- 

 green ; no apparent wing-bars ; outer tail-feathers with white on their inner 

 webs at the tips ; ear-coverts ashy ; under parts yellow ; sides indistinctly 

 streaked with blackish.' L., 4-75 ; W., 2-20 ; T., 1-95 ; B. from N., ■28. 



Stinarks. — The chestnut-rufous patch in the back at once identifies the 

 adults ; but the young are puzzling birds, to be known chiefly by their small 

 size, absence of wing-bars and streaks on the sides. 



Hange. — Eastern United States ; breeds from Florida to Michigan and 

 Massachusetts; winters from soutliern Florida southward. 



Washington, very common S. E., Apl. 20 to Sept. Sing Sing, rare S. K., 

 May 2 to Sept. 14. Cambridge, locally common S. E., May 8 to Sept. 15. 



Nest, of plant fibers and plant down, lined with rootlets and long hairs, in 

 briary bushes. Eggs, four to five, white, spotted distinctly and obscurely with 

 cinnamon- or olive-brown, or chestnut, chiefly in a wreath at the larger end, 

 •64 X -48. 



The Yellow, Palm, and Prairie Warblers are the three " Wood 

 Warblers " that are rarely found in the woods. The latter, however, 

 differs decidedly in habits fi-om either of the former. It is a rather 

 retiring inhabitant of scrubby clearings, bushy fields, and pastures, or 

 thickets of young pines and cedars. But while the Prairie, if silent, 

 might readily escape observation, no one with an ear for bird music 

 will pass within sound of a singing bird without at least trying to 

 solve the mystery of its peculiar notes, a series of six or seven quickly 

 repeated zees, the next to the last one the highest. 



674> Seiurus aurocapillus {lAnn.). Oven-bird ; Golden-ceowned 

 Thkush. (Fig. 104.) Ad. — Center of the crown pale rufous or ochraceous- 

 buflt; bordered on either side by black lines ; rest of the upper parts, wings, 

 and tail brownish olive-green; no wing-bars or tail-patches; under parts 

 white ; the sides of the throat, the breast, and sides streaked with black. L., 

 6-17 ; W., 3-00 ; T., 2-15 ; B. from N., -35. 



5an^«.— JEastera North America ; breeds from Kansas and Virginia north- 

 ward to Manitoba and Labrador, southward along the Alleghanies to South 

 Carolina ; winters from Florida southward. 



Washington, very common S. E., Apl. 20 to Oct. 15. Sing Sing, common 

 S. B., Apl. 27 to Oct. 10. Cambridge, abundant S. K., May 6 to Sept. 15. 



Nest, bulky, covered, the entrance at one side, of coarse grasses, weed 

 stalks, leaves, and rootlets, on the ground. Eggs, four to five, white, speckled 

 or spotted with cinnamon- or rufous -brown markings, sometimes finely dis- 

 tributed, sometimes confluent about the larger end, -80 x -60. 



During the nesting season Oven-birds are among our commonest 

 woodland birds. We hear them everywhere ; one singer scarcely ceases 

 before another begins. But when the song period has passed how 



