Research into red deer ecology probably started with, "A herd of Red Deer" by Frank Fraser Darling in 1937, it's a classic and still relevant, recently re-published by Luath Press, Edinburgh in paperback.
Then not a lot seems to have happened for 40 years re: ecology. Until in 1977 The Institute of Terrestrial Ecology produced, "Ecology of Red Deer Red Deer - A research review relevant to their management in Scotland." There seems to have been a dearth of UK research and it draws heavily on European and N. American work, this may have prompted Fiona Guinness's project on Rum results of which you can find in, " Red Deer: Behaviour and ecology of two sexes, Clutton-Brock, Guiness and Albon, 1982, it's available on Amazon., £59 for the hardback and £33 for the paperback. Your local library should be able to get all of these for you on inter-library loan ( if you still have one that is.)
As I was trawling through Amazon on your behalf I found a completely new title to be published this month, "Chasing the Deer - Red deer through the seasons" by Neil Mcintyre, you can pre-order. As I haven't read it I can't comment but if the publisher is reading this perhaps he'll send me a free copy for review.
So plenty of stuff on ecology but very little on actually stalking in Scotland , perhaps because there isn't much more to be said than you'll find in the booklet willie_gunn recommended, "Going to the hill.......an introduction to red deer stalking in Scotland.
I hope this helps