78 



NORTH AMERICAN FAUNA 68 



Figure 39. — While grooming, water is squeezed from the fur of the foreleg 

 under pressure and by rubbing with the palm of the paw. (KWK 61-10-25) 



whistle when the feeding schedule is delayed, and when they are 

 carried on a truck or aircraft. The sound is uttered by adults and 

 subadults primarily and to a lesser degree by juveniles. The 

 whistle is loud enough to be heard to a distance of about 200 

 meters. It is a high pitched vocal sound that resembles a human 

 whistle and is uttered with the mouth slightly open. "Wheeee 

 wheeee" repeated often and of varying duration. 



COOING 



Females coo during premating and postmating behavior and 

 also when grooming and fondling young. The coo appears to come 

 from the throat and to denote satisfaction and contentment. 

 Females coo while eating if the food is particularly pleasing. The 

 mouth appears to be closed when it is uttered. Cooing can be 

 heard up to a distance of about 15 to 30 m. on a quiet day. The 

 sound "ku-ku-ku" may be continued for considerable periods either 

 steadily or intermittently. 



SNARL OR GROWL 



This sound appears to originate deep in the throat and is uttered 



