What is Radio Telemetry? by the Smithsonian Migratory Bird Center (source code)

= What is Radio Telemetry? by the Smithsonian Migratory Bird Center
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https://www.nationalzoo.si.edu/migratory-birds/what-radio-telemetry

Institutional account of the center's field method: transmitter/antenna/receiver, homing, triangulation and limits of local bird tracking. No personal byline inferred; no costs, tag-weight recommendations or transmitter specifications reused.