I am looking to track within breeding season movements of a 25 g bird. The species is not philopatric, so trackers that require recapture are not an option. Trackers must be under 0.75 g per USGS regulations. I'm thinking I am going to be limited to radio transmitters but if you know of other options, I would be very interested. Do you have a favorite radio transmitter brand? Cost is a major consideration. Thank you!

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