I do mentally mark both of those spots immediately (and continue to stare at them while I wait to ingrain them in my mind)- but wouldn't do it physically. The deer could be just out of sight and not done...could be detrimental to your track. Glassing thickets for horizontals is good for sure...and if you DO see the deer and its head is UP... or laying chin down (like a dog) it ain't done. Tread lightly...