XIX a. 



Prairie Deermouse, Baird Mouse, or White-footed 



Prairie-mouse. 



Peromyscus maniculatus bairdi (Hoy and Kennicott). 



(bairdi, in honor of S. F. Baird.) 



Mus hairdii HoY and Kennicott, 1857, P^^. Off. Rep. for 



1856, p. 92. 

 Peromyscus maniculatus hairdi Osgood, in MSS. 

 Type Locality. — Northern Illinois. 



• 



On p. 492 this race is compared with arcticus and suffi- 

 ciently characterized for identification. 



Life-history. 



This is a species of general distribution in the Upper range 

 Mississippi Valley, and faunally south-western Manitoba is a 

 part of that region. 



I collected five specimens at Carberry. Professor C. L. 

 Herrick says^ the species is of "reasonably frequent occur- 

 rence in the south-eastern part of Minnesota." V. Bailey 

 found it" "common on the high prairie in the town of Traverse 

 on the Dakota side of the valley," and also at Pembina, and 

 caught a supposed specimen at Bottineau, on the west slope 

 of Turtle Mountain. 



It is essentially an animal of high, dry prairies, and is the 

 complement of the common Deermouse. They are closely 

 related and much alike, but one is a robust forest form, and 

 the other a slender prairie species. 



I have no evidence on the home-range of the individual, home- 

 but analogy would argue that it cannot be more than 100 

 yards radius. 



' Mam. Minn., 1892, p. 190. 

 Rep. Om. U. S. Dep. Agr., 1888, p. 442. 



499 



