70 YEARBOOK, PUBLIC MUSEUM, MILWAUKEE. [Vol. I. 



House Mouse, AIus niusculus 1 



This individual was identified by Dr. Osgood from two jaw bones. 



Common Shrew, Sorcx pcrsonatus (figure 38-14) 12 



Mole Shrew, Blarina hrcvicauda (figure 38-17) 14 



These Shrews constituted a trifle less than 3% of all creatures eaten 

 (and being small, of course furnished considerably less than that per- 

 centage of the total bulk of food). 



Skulls, some other bones, and the gizzard linings of three small 

 sparrow-like birds were found. The exact species could not be deter- 

 mined. In this case birds amounted to less than one-half of one per 

 cent of all creatures eaten. 



Crawfish — (species not determined) 2 



Fragments of these animals were found in two different pellets from 

 different roosts. The bones of mice found in the same pellets were 

 stained a light pink. 



That part of the record pertaining to one individual owl is here 

 given separately : 84 pellets (estimated by weight) picked up under 

 the roosting place of this owl — 12 of which are exhibited in their nat- 

 ural state. The 72 examined were found to contain 4 mice of the sub- 

 genus PcromyscHS, 144 Meadow Mice, Microtiis pcunsylvauicus, and 3 

 Mole Shrews, Blarina hrcvicauda. 



Fourteen days' accumulations of this owl : Number of pellets gath- 

 ered 15. 



Remains found : 32 Meadow Mice, Microtus pciinsyhaiiicMs and 2 

 White-footed or Deer Mice ("small skull hairdi, large one probably 

 iwvcboracciisis" Osgood) . 



Although not shown in the exhiljit nor included in the foregoing 

 totals, other lots of pellets gathered in other localities have been ex- 

 amined with corresponding results. 



A small lot from ]Mineral Springs. Ind., gathered November 22, 

 1921, yielded remains of 2 Mole Shrews, 2 Common Shrews, 2 White- 

 footed Mice (subspecies?) and 20 Meadow Mice. 



A lot gathered March 12, 1922, from just north of Racine, Wis., 

 contained remains of 51 mice of the genus Microtus (principally, if not 

 all, the common Meadow Mouse, Microtus pciuisyhanicus) 4 White- 

 footed Mice (subspecies?) and 1 Mole Shrew, Blarina hrcvicauda. 



The only evidence as to this Owl's diet at other seasons that I can 

 offer, is as follows : A nest of the Long-eared Owl with four newly 

 hatched young, found in Sauk county, April 22, 1911, contained 2 

 White- footed Mice (subspecies?) and remains of a Junco. 



