Zoe finds a strung recurve bow in the barn. No archer stores a bow strung, as it destroys the tension in the bow and renders the bow useless.
As the redneck shoots at Amanda, running through the desert, one hears a ricochet. There is no solid object from which a bullet would ricochet.
There is hair attached to the skull of the slain Apache warrior. Hair follicles are attached to the skin; once skin deteriorates, the hair would not be attached. Also, the hair itself would most likely have decomposed.
A phone operator, including a 911 operator, would not disclose the source location of a call, as this contradicts privacy laws. Even a call originating from a pay phone.