Does anyone know how can we represent the GPS data acquired over three years from radio-collared deer? Any GIS Software for mapping out home range and seasonal movement without going for excel calculations?
The best solution is to use R rather than a GIS software for analyzing home range and seasonal movement. GIS is a good tool for keeping and viewing your data. R is designed for analysis. A review paper for animal movement using R can be a start paper. https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2656.13116.
I agree with my colleagues. Take a look at R packages "adehabitatHR" and maybe it would be worth checking the Brownian Bridge Movement method with "BBMM" package.
I also agree with my colleagues. You can use R and the nice GUI of RStudio to calaculate home ranges. I recommend for instance the R package "tlocoh", where you can not only account for spatial, but also for temporal aspects within your data. There is also a very nice manual for this package. Check out the following link:
https://tlocoh.r-forge.r-project.org
For visualisation purposes you can use a GIS software.