I know that on a different thread injuries to sheep where likened to that in deer.
I was one of the believers of this theory and some whom farmed sheep also agreed.
I having read this report and heard the in depth version on the radio felt it was worth mentioning here.
I know the "don't Humanise deer" is a very wide spread thought and is too the idea that deer are not creatures of habit to a certain degree.
What this study does show is that the deer ( if as intelligent as sheep ) may well be able to associate certain things to possible events.
Not only this, but they(deer) if you assume the above, come to the conclusion that they learn from experiences.
BBC News - Study shows Welsh sheep