Does a velociraptor use smell movement or what to hunt?

Velociraptors likely possessed superb sensory abilities. Like the other dromeosaurs, and much like their close relatives, the birds, they had very well developed eyes and were quite possibly tetrachromats (possessing four types of color receptors, like modern birds and many other reptiles, and unlike humans which possess only three), meaning that they likely saw a greater range of colors than we do. Furthermore, an analysis of their scleral rings suggests that they may have been nocturnal hunters, suggesting that they may also have possessed good night vision. An analysis of dromeosaur olfactory bulbs also suggests that their sense of smell was acute, possibly on the level of some modern vultures which rely on their sense of smell to detect carcasses at long range. All in all, Velociraptors were very well equipped to home in on their prey using a full range of senses, from smell to sight to sound, depending on the particular situation.