Went out to a spot where I having been seeing deer for the past week. Glassed for a couple hours and was not able to find a thing until I see what looks to be 6-7 males moving briskly through the bottom of a canyon. Figuring they were illegal immigrants I stayed put for a few minutes. As I was going to call BP i saw someone walking the same canyon but he was on the ridge, glassed him and it was a BP officer. I went and talked to him they had a dog tracking them and within minutes I had a helicopter buzzing my area for about 20 minutes. So a lot of human scent through my hunting grounds today so I cut my losses and headed home early.