Population data:The last complete population survey in the area was completed in 1965. During this extensive survey, 35 coyotes were calculated in the valley. Since then, USFWS scientists have checked dens each winter to count pups and collected any carcasses found throughout the year. These have been summed into five year periods and can be used to represent births and deaths within the population. The population size for each subsequent time period can be found by taking the current population, subtracting the deaths and adding the births.

CoursHeroTranscribedText

Year Pups Recovered carcasses 1970 25 1975 40 1980 20 1985 21 025 8 1990 13 7 1995 13 10 2000 10 10 2005 10 11 2010 10 10 2015 10 10 2020 10 10