ANDER,SON — Til?: BIRDS OK IOWA. I 57 



records a specimen in the University museum, taken in Johnson 

 county (^Proc. Iowa Acad. Sci., 1892, 40). Dr. B. H. Bailey has 

 specimens taken at Cedar Rapids March 10, 1903, Sept. 11 and 28, 

 1903. He states that during vSeptember, 1903, large numbers 

 were flying over Cedar Rapids in scattered flocks, and several 

 other specimens were taken, both in adult and juvenile plumage. 



Wm. E. Praeger states that it is " a regular fall migrant but 

 never recorded in the spring. Small flocks frequently stay for 

 days on some fa\-orite sandbar, earliest date Sept. 9, latest Oct. 

 15" (Keokuk district). G. H. Berry reports it as a " tolera])ly 

 common migrant" (Linn); and B. H. Wilson as a "straggler; 

 one record, near Rock Island, 111." 



The University museum has several specimens: No. 3689, 

 female, Johnson county, Sept. 16, 1889, K. R. Griflin ; 16267, 

 Burlington, Sept. 17, 1898, Paul Bartsch ; 10581, male, Oct. 3, 

 1894, Johnson county, U. h. Gorton ; 3923, Iowa, no date ; 15983, 

 Sept. 25, 1895, Henderson county, 111. (oppposite Burlington), 

 Paul Bartsch. 



Subgenus vSterna Nuttall. 



18. (69). StcDia forsteri Nutt. P'^orster Tern. 



This species is a tolerably common migrant o\'cr most of the 

 state, and a few are found throughout the sunnner on various 

 lakes of northern Iowa. I have found no authentic records of 

 the Forster Tern nesting in Iowa, although Rev. P. B. Peabody 

 found a small colony nesting at Heron Lake, Minn., on muskrat 

 houses, May 26 and June 10, 1894 (Osprey, i, i, 1896, 1-3, "A 

 Tern Study"). 



County records: Boone — " arrives about last week in April, 

 becomes quite common during spring and fall migrations ; small 

 flocks of ten or twelve ma}- often be seen at the large ponds where 

 they remain for several weeks" (Henning). Cerro Gordo — 

 " common summer resident. I have a male taken at Clear Lake, 

 June 10, 1891 " (Richardson). Clinton — (Parker, Am. Nat. v, 

 1871, 169). Dickinson — "abundant summer resident; Spirit 

 Lake" (Berry); "several shot at Spirit Lake the last week in 

 July, 1902" (Bailey); "common on West Okoboji Lake, Aug. 

 I3"i9. 1901" (Anderson). PVanklin — "frequent migrant" (Shoe- 

 maker). Hancock — "migrant" (Anderson). Jackson — " com- 



[Proc. D. a. S., Vol. XI. J 23 [.\iigu.st 15, 1906.] 



