JRW, thanks for the tip, I had not thought of that either. I will go back to where I thought the deer started back tracking (the end of the trail) and start searching there again (though I have searched that area somewhat).
The only pink and bubbly blood I found was on the ground. The blood on the trees and bushes was solid red.
Something strange did happen on Sunday that I did not report. As I was in the woods looking for sign, I saw 3 buzzards circling in the sky about 300-400 yards away. I got excited and ran out to an open field to get a better look at where they were and . . . they disappeared. I cannot explain what happened but I walked and drove around and those buzzards never showed up again. I just knew it was my deer. I live near a highway so it could have been roadkill.
I had to go back to work yesterday so I have not been able to look. I get home right before dark, just enough time to look out the back window and see if the deer are in the food plot. Will let everyone know if I see the deer again. Thanks again for all the help.