448 REED-WRIGHT— THE VERTEBRATES OF [October i, 



329 (681). Geothlypistrichas (Linnaeus). Maryland yellow-throat. 

 Common summer resident. The average date of arrival is May 



4, the earliest, April 30, 1905. Nests with eggs are found from May 

 25 to June 20. It ceases to be common in the fall about the first 

 of October. The latest date is October 10. 



330 (683). Icteria virens (Linnaeus). Yellow-breasted chat. 

 Fairly common summer resident. The average date of arrival 



is May 12, the earliest, May 4, 1905. Nest-building begins about 

 May 25. Eggs are found throughout June. On June 26, 1902, L. 

 A. Fuertes found a pair just beginning to build. Formerly this 

 species was rare in the region about the south end of the lake but 

 has increased greatly during the past eight years. 



331 (684). Wilsonia citrina (Boddaert). Hooded warbler. 

 Rare transient and summer resident at the north end of the lake. 



It is found between May 8 and 20, but appears to be more common 

 from the tenth to the fifteenth of the month. Air. G. C. Embody 

 reports a nest with young which he found near Auburn and Mr. F. 



5. Wright reports one found four miles east of Auburn. 



332 (685). Wilsonia pusilla (Wilson). Wilson's warbler. 

 Common transient. The average date of arrival is May 11, the 



earliest. May 10, 1900. It is common from its arrival until the 

 twentieth of the month. A few are sometimes seen after this date. 

 The latest date is one seen June 7, 1908. 



333 (686). Wilsonia canadensis (Linnaeus). Canadian warbler. 

 Common transient. It breeds in small numbers on the hills in 



the southern portion of the basin. The average date of arrival is 

 May 8, the earliest, May 5, 1905. They continue common from 

 their arrival until May 30. They have been found breeding on 

 South Hill and Ellis Hollow from June 7 to 19. On the latter date 

 a nest of five young were found. 



334 (687). Setophaga ruticilla (Linnaeus). Redstart. 



Common summer resident. The average date of arrival is May 

 3, the earliest, April 29, 1905 and 1906. They nest from May 10 

 to June 15. A few are found nesting later than this date. On 

 July II, 1906, a nest was found which contained eggs. This species 



