MIGRATION OF OUR BIRDS IN AUTUMN 355 



the greater part of the upper Ohio Valley, growing principally 

 upon earlier glacial deposits. H. flava, although as yet seen onlv 

 in cultivation by the writer, may then be expected to be found 

 at any time as an escape in the locality given. Dr. O. E. Jennings 

 relates of collecting this species in Ohio, although it is not listed 

 by Schaffner.' 



Central Hi^h School, St. Louis, Mo. 



COMPARATIVE MIGRATION OF OUR BIRDS 

 IN AUTUMN. 



BY BROTHER ALPHONSUS, C. S. C. 



■ Between the earliest and latest date of the Cowbird there 

 were 58 days, which wT)uld indicate that either the writer missed 

 the date in one year by a very wide mark or that the Cowbird 

 can be very irregular in its time of migrating. The date for 1911 

 was 23 days earlier than in 191 2 and 28 days earlier than in 1913. 

 The two regular dates were in October, which is likelv the usual 

 time of migrating. 



In 1909 the Red-winged Blackbird was observed last on 

 August 26 and in 1911 no record was made for autumn. These 

 facts show that the species is exceedingly rare at this season of 

 the year, and will be found only by a fortunate observer. The 

 two dates in November for 191 2 and 1913, which are 

 two weeks apart, gives us the probable time of departure as well 

 as the difference of one year from another. 



The Hermit Thrush was very regular in its arrival from the 



' "Catalogue of Ohio Vascular Plants." Schaffner, J. H. Ohio State 

 University Bulletin, Vol. 28, No. 224. 



Linnaeus. (Species Plantarum, 1753, p. 324). admitted the now 

 recognized species H. flava, {flaviis), and H. fiilva, (fnlvtis), as varieties of 

 H. Lilio Asphodelus both forming a composite type species for the genus. 

 Dr. J. A. Nieuwland has pointed out, (American Midi.and Naturalist, 

 Vol. II., p. 106), and also in a recent letter to the writer, that an interpre- 

 tation of Linnaeus consistent with the rules of Rochester and Vienna, makes 

 the form recognized as H. flava the type of the genus, as it was by examina- 

 tion of Pre-Linnaean authors. It is evident from the above therefore, 

 that the valid name according to the nomenclature of H. flava, is really 

 //. Lilio Asphodelus. 



