In this concluding episode, Dr. Chris Nicolai, waterfowl scientist for Delta Waterfowl, explains neck collars, web tags, nasal saddles, geolocators, transmitters, GPS units, and more. How are they used, how have they evolved, and how are scientists using them to learn more than ever about movements, migrations, and behaviors of waterfowl across North America? Listen and learn from our friend and colleague, Dr. Chris Nicolai.

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