Do deer whistles really work?

Awpeye Deer Whistles for Car 8 Packs, Deer Warning Devices Include Ultrasonic & Wind Whistle for Vehicles & Motorcycles

Bell Ultrasonic Car Deer Warning Whistle, Auto Deer Alert Avoidance Device, Black, 2 Count by GOSO Direct

Lieonvis 4Pcs Car Deer Whistles Vehicle Deer Warning Device Horn Weather-proof Car Deer Whistle Repellent Devices Save Deers Whistles with Extra Tapes for SUV Car Vehicle Truck Motorcycle

2pcs Car Deer Whistles Avoids Collisions For Vehicles Motorcycle Truck

MAIKER 12PCS Deer Whistles for Car Vehicles Dual Construction Extra Ta – Maiker Offroad

Vaguelly 2pcs deer whistle deer horns for vehicles deer warning whistles for car alert devices deer warning for car horn for car deer devices for car deer warning devices - Yahoo Shopping

SAVITA 2pcs Auto Deer Whistles, Black Ultrasonic Car Deer Warning Whistles Self-adhesive Animals Alert Devices for Cars, Trucks and Motorcycles

Deer Whistle

4pcs Save A Deer Whistles Deer Warning Devices For Cars & Motorcycles Suv Atv Deer Collisions Car Deer Warning Ultrasonic Wildlife Warning

2PCS Deer Whistles Deer Warning Devices for Cars & Motorcycles