Deer are notorious for being in the wrong place (the road) at the wrong time (always). But as this month is mating season, they're inclined to be even more brazen in the name of getting laid and thus a greater threat than ever to motorists.
The IIHS consistently prints releases about how many more car-on-deer collisions take place in November, and you can consider this your friendly reminder to keep your eyes open for the white-tailed rascals.
You don't have to take my word for it, this lovely graph is straight from the IIHS:
...They may not have Torchinsky's eye for design, but you get the idea.
Images & Data: IIHS