Annotated List 37 



First spring Feb. 18 (i90i)-Mar. 20 (1886). 

 Ave. 10 yrs. Mar. 11. 



Last spring Mar. 11 (i90i)-Apr. 17 (1913). 

 Ave. 10 yrs. Apr. 4. 



First fall Oct. 10 (i905)-Oct. 29 (1909). Ave. 



7 yrs. Oct. 22. 



Last fall Oct. 17 (i9io)-Dec. 15 (1891). Ave. 

 17 yrs. Nov. 13. 



34. Mycteria americana Wood Ibis. A straggler 

 from the south. According to Pennock, a specimen 

 was taken by the late Vincent Barnard since the 

 publication of his list in 1 86 1. 



35. Botaurus leutiginosus Bittern, "Indian hen," 

 "mud hen." Scarcely common as a transient, Apr. 

 II (i88o)-Apr. 26 (1880); Aug. 3 (i887)-Dec. 



8 (1889) ; and rare as a summer resident. Mont- 

 gomery closely observed one in May, 1895, and 

 Pennock states that specimens have been shot 

 throughout the summer months. A specimen said 

 to have been taken from a nest and three eggs among 

 the tussocks of Doe run, was brought in to be mount- 

 ed on May i, 1897 (Wilson MS.). 



36. Ixobrychus exilis Least Bittern. Rare sum- 

 mer resident. Dr. Warren records a specimen taken 

 May 20, 1884 (Bds. Pa., 19), and W. L. Baily 

 observed oae at Paoli, May 11, 1914 (Cass., xviii, 

 52). The only breeding record is by L. S. Pierson 

 and A. C. Redfield, June 12, 1909; a nest and 

 four eggs in a cat-tail swamp at the head of Darby 

 creek, near Benvyn (AuU, xxvi, 426), and I had the 

 pleasure in verifying the record to my own satis- 

 faction the next day, as well as later visits to observe 



