1909.] THE CAYUGA LAKE BASIN, N. Y. 447 



2,22 {6y2). Dendroica palmarum (Gmelin). Palm warbler. 



Not a common but a regular transient. The average date of 



arrival is May 2, the earliest, April 2y, 1908. The latest record for 

 spring is May 21, 1908. 



323 (672a). Dendroica palmarum hypochrysea Ridgway. Yellow 

 palm warbler. 



One specimen, taken October 25, 1908, at Danby. 



324 (674). Seiurus aurocapillus (Linnseus). Oven-bird. 

 Common summer resident. The average date of arrival is May 3, 



the earliest, April 27, 1908. Nests with eggs are found from May 

 25 to June 20. The bulk of individuals have left for the south by 

 September 15. The latest fall date is October i, 1908. 



325 (675). Seiurus noveboracensis (Gmelin). Water-thrush. 

 Common transient and breeds in small numbers. The average 



date of spring arrival is April 30, the earliest, April 27, 1908. They 

 cease to be common about May 5. They breed in small numbers 

 at the base of West Hill and in a small marsh on East Hill near 

 Ithaca. In the fall they become common the first week in August 

 and remain until October i. 



326 (676). Seiurus motacilla (Vieillot). Lousiana water-thrush. 

 Common summer resident. The average date of spring arrival 



is April 16, the earliest, April 14, 1906. Nests with eggs are found 

 from May 7 to June 3. On June 13, 1906, L. A. Fuertes found 

 four young just leaving the nest. 



327 (678). Oporornis agilis (Wilson). Connecticut warbler. 

 Common transient in the fall from September 7 to 30. Not 



present in the spring. 



328 (679). Oporornis Philadelphia (Wilson). Mourning warbler. 

 Common transient and frequently found during summer. The 



average date of arrival is May 10, the earliest, May 4, 1905. No 

 nests of this species have been found but males in full song are 

 seen every year in the woods of Renwick marsh through May, 

 June and July. On June 30, 1908, immature birds were seen in 

 the Renwick woods. 



