386 NORTH AMERICAN FAUNA [No. 55 



ground. It was an adult female in very full pelage, and measured 

 16% inches from tip to tip of wings and 5% inches from tip of nose 

 to tip of tail. This probably represents a record during migration, 

 where the bat was merely resting for the day (Murrelet 11 (3) : 75, 

 1930). 



At the Ranger Station near Voltage on the south side of Malheur 

 Lake, Wilbur Springer brought the writer a fine old male hoary bat 

 on September T, 1920. It had been found clinging to the cellar door 

 one cold morning and was partially torpid. There were no trees 

 in the vicinity and the bat had evidently been forced to take a board 

 as a substitute. It was kept alive for a few days in a half -torpid 

 state and perhaps would have hibernated if suitable quarters had 

 been available, although it was not fat and was evidently on its 

 southward migration. 



On June 27, 1928, the writer's sister, Anna Bailey Mills, found 

 one of these big bats, a male, probably on its way north, hanging 

 in the green foliage of a plum tree in her orchard near Fallon, Nev. 

 It was captured in a butterfly net and kept for several days in 

 captivity. It did not eat the cutworm moths put in its box and only 

 licked at pieces of raw meat but was very thirsty on the second day 

 and eagerly drank water from a teaspoon, licking it up with its 

 long and rather broad tongue. Later it proved to be fond of warm 

 milk and lapped up all there was in a spoon and then licked out the 

 spoon with the long red tongue just as a little dog would lick out its 

 plate. The bat would climb a branch in the cage and hang for the 

 day by the hooked hind claws and with wings folded neatly around 

 it sleep quietly until evening. On the sixth day it was found dead 

 in the cage, the liquid diet evidently not proving sufficiently nourish- 

 ing for its hearty system. Not a large individual, it measured 5 

 inches in total length, with a wing spread of 14 inches. 



Breeding habits. The mammae of the hoary bats are arranged in 

 two pairs on the sides of the breast, and the young are usually two 

 in number, born in late June or early July and carried clinging to 

 the body of the mother until able to fly. Merriam has some evidence 

 to show that the mating season is in August, but the breeding habits 

 are not well known. 



Hibernation. Whether these bats commonly hibernate or go far 

 enough south on their autumnal migrations to find a mild climate 

 and abundant insect life during the winter is not well known. Oc- 

 casionally one is found hanging up in a bush or tree in a semitorpid 

 condition, but there seem to be no records of their occurring in any 

 considerable numbers in caves or other suitable winter cover. 



CORYNORHINUS RAFINESQUII TOWNSENDII (COOPER) 

 JACK-BABBIT BAT; SO-CAPUAL of the Chinook (J. K. T.) 



Plecotus townsendii Cooper, Amer. Lyceum Nat. Hist., New York 4: 73, 1837. 



Type locality. Fort Vancouver, Wash. 



General characters. Size medium, spread of wings about a foot; ears thin 

 and very long over an inch, nose with two prominent lumps at sides, mem- 

 branes thin and naked, color dark, teeth 36. Color of typical specimens from 

 Comox, British Columbia, and Vida, Oreg., dark, sooty brown, slightly lighter 

 below, ears, feet, and membranes dark brown like fur. 



