Show flyers count wild life taking a census of 0 wild life par t the fur bearing animals animal calls for experts who can read snow tracks following fresh trails tb the census taker can locate dens or burrows barrows and then from a careful study of the various footprints around can tell how many animals live there then and the approximate age groups group the bureau bare u of biological survey has ha found it quicker more econom economical economic iW and reliable to count deer and elk by spotting them from airplanes airplane counts also have hare been found helpful in estimating the number of waterfowl in lake lal regions |