I see a lot of deer when I bike to work, but I can't usually get close enough to take a decent photo. This one, from Friday 9/4/09, wasn't horrid.
Thinking about deer and hunting in a sci-fi context brought me this idea:
Picture an alien race of intelligent predators. They live in an urban environment but they all want the thrill of the hunt. They don't want their prey to be too tame, because that makes it too easy.
They handle this by sensefiltering all the prey animals. It's the idea of a totally computer-moderated sensorium, where you and I could be in the same room and have completely different experiences...but applied to animal life.
So, your deer, for example, can live right in the middle of a city, in greenbelts or whatever, and never interact with buildings, cars, people.
But, when one of the aliens wants to hunt, he tells the computer (or it just senses his hormonal change) and suddenly he's visible to the prey. They want it to be sporting, so if you're too close to a deer, it gets a warning. Otherwise, you both now inhabit the same reality.
This would be fun if shown as an image of idyllic nature: that is, we first see the happy deer wandering peacefully through a city, never straying onto the roads it can't perceive, never seeing people. Then, clawed death.