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GPS Collars tracking devices for Birds, wildlife and agriculture
Biologists Begin Coyote Tracking Study in the Marin Headlands (U.S. National Park Service)
Radio tracking collars
GPS and VHF Tracking Collars used for Wildlife Monitoring
G2110E2 Iridium-GPS Wildlife Telemetry Collar| Advanced Telemetry Systems
Outdoors Q&A: Purpose and Frequencies of Tracking Collars? | Outdoors | Noozhawk
Small WildCell GPS & Radio Collar | Lotek
Dog Tracking Collars — L.L. Electronics
GPS and VHF Tracking Collars used for Wildlife Monitoring
BUYER'S GUIDE: Read this before you buy a tracking collar!
Amazon.com : SportDOG Brand TEK Series 2.0 GPS Tracking + E-Collar Add-A-Dog Collar - Waterproof and Rechargeable with Tone, Vibration, and 99 Levels of Static : Pet Supplies
Friends of the Island Fox: Fox Radio Collars Help Determine Effects of Motorcycle Race