90 



261. Dendroica dominica albilora Btiirl. SYCAMORE WARBLER; WHITE-BROWED YEL- 

 LOW-THROAT WAKBLER. 



Summer resident, generally common southward and aa far north in the Wa- 

 bash Valley as Montgomery and Carroll counties. Throughout the remainder of 

 the State of rare or accidental occurrence. In the extreme northwest part of the 

 State it appears to be wholly wanting, although a few have been found about Chi- 

 cago. In the southtrn part of the State it frtquents the valleys of streams, where, 

 among the sycamores, cottonwoods and elms, its peculiar song is heard. In au- 

 tumn they extend their range to some extent locally, and are often found about 

 the orchards and lawns. I have never known them to frequent the uplands. 

 They are more common in the lower Whitewater Valley than any other species 

 frequenting puch localities, yet I do not know that it has been taken as far north 

 as Richmond. May 19 and 20, 1887, I found them very common along Sugar 

 Creek, in Parke and Montgomery counties. Mr. Stockbridge notes it as rare in 

 Allen County, and Mrs. Hine has seen but one, and that in September or Octo- 

 ber, in Dekalb County. Neither Mr. Deane nor Mr. Coale ha* been successful 

 in finding it in the Kankakee Valley or in Lake County. They breed commonly. 

 Usually they arrive in the vicinity of Brookville April 12 to 18, but in 1882 one 

 was eeen as early as April 3. They begin mating by April 22, and a specimen 

 taken May 19, 1882, contained an egg ready to be layed. They pass southward 

 late in September or early in October. They are said to be rather common in 

 summer in the vicinity of Detroit, Mich. 



Black-throated Green Warbler, nat. size. 



262. Dendroica virens (Gmd.). BLACK-THROATED GREEN WARBLER. 



Very common migrant. Noted in the southern part of the State from April 

 23 to May 11. Mr. Coale has found it in Lake County May 24. In autumn they 

 appear late in August (29th), and occasionally remain until October 8. They are 

 generally very abundant throughout September. Since Mr. Nelson found a few 

 breeding in Northeastern Illinois (Birds Northeastern Illinois, p. 100), it is not 

 unreasonable to expect they will be found to breed in Northern Indiana. 



