Don't be too sure - mid day - back roads ( paved ) - 3 deer sauntered across. 
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Oh Deer.. I went down..
- Thread starter kiwi
- Start date
Re: Deer Radar?
If it relies on ultrasound, it's useless. Infrasound, maybe. Deer have a more narrow hearing range than humans, IIRC. They're herbivores with ears tuned to hear large predators like wolves, bears and cougars, none of which make ultrasonic noises. Felines and canines do hear some ultrasound as smaller prey animals tend to make noises in that range, often from under cover or in the dark.
Imagine the confusion those whistles must cause to neighborhood pets. They're the equivalent of driving around with a vuvuzela blasting away.
If it relies on ultrasound, it's useless. Infrasound, maybe. Deer have a more narrow hearing range than humans, IIRC. They're herbivores with ears tuned to hear large predators like wolves, bears and cougars, none of which make ultrasonic noises. Felines and canines do hear some ultrasound as smaller prey animals tend to make noises in that range, often from under cover or in the dark.
Imagine the confusion those whistles must cause to neighborhood pets. They're the equivalent of driving around with a vuvuzela blasting away.
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