WESTERN FIELD SPARROW 1235 



Illinois: 79 records, April 20 to August 11; 40 records, May 17 to 

 June 10. 



Iowa: 17 records, May 12 to July 30. 



Kentucky: 10 records, May 7 to June 5. 



Manitoba: 1 record, June 30. 



Maryland: 265 records, April 21 to August 25; 105 records, May 10 

 to June 8. 



Massachusetts: 35 records. May 15 to July 25; 18 records, May 21 

 to June 10. 



Michigan: 708 records, April 28 to September 18; 55 records. May 

 15 to June 30. 



Missouri: 7 records, May 4 to May 17. 



New Jersey: 35 records, May 5 to July 13; 19 records. May 15 to 

 May 31. 



New York: 23 records, May 3 to August 10; 11 records, June 10 

 to July 22. 



Ontario: 21 records, May 9 to July 19; 11 records, June 10 to 

 July 22. 



Texas: 3 records, April 22 to May 4. 



West Virginia: 65 records, April 30 to July 16; 36 records, Alay 15 

 to May 31. 



SPIZELLA PUSILLA ARENACEA Chadbonme 



Western Field Sparrow 

 Contributed by Lawrence H. Walkinshaw 



Habits 



Arthur P. Chadbourne described this western race of the field 

 sparrow in 1886 from wintering specimens taken in Laredo, Texas. 

 He diagnosed the subspecies as "Similar to S. pusilla but with the 

 rufous replaced by brownish-ash, and of slightly larger size, with 

 decidedly longer tail and somewhat heavier bill." The following 

 year C. Hart Merriam gave specific rank to breeding specimens from 

 South Dakota and Nebraska. Later evidence showed the form to be 

 only subspecifically distinct, and it has been so recognized by the 

 A.O.U. Check-List ever since. 



Little has been published about the ecology or the breeding habits 

 of this form, which presumably do not differ materially from those of 

 the eastern race. 



Distribution 



Range. — Montana and North Dakota to Coahuila, Nuevo Le6n, 

 Tamauhpas, and Louisiana. 



646-737— 68— pt, 2 42 



