What kind of radio frequency identification technology exists that can track individual birds on a Google Maps-type application while they are in the air?
There is no type of RFID technology that can do what you ask, unless you are tracking the birds within a confined area. RFID is a relatively short-range technology designed to locate items in confined spaces, such as a store, a factory or a warehouse. You could use an active ultra-wideband RFID system to track birds inside a cage and monitor their precise locations within, but I assume you want to track them over a much larger area. GPS is the way to go.
—Mark Roberti, Founder and Editor, RFID Journal
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