Yeah, I was bored.

I saw an odd-looking antenna array a few weeks ago here on the beach (photo-1).

Through a bunch of web-crawling (starting with the search term "wildlife tracking Mississippi"), I came across the Motus Dashboard.

Narrowing the map down, I found the station I had been looking at.

Clicking on "more details", you find the actual station characteristics (photo-2).

A bit more web searching and parsing the station details, lead me to this site, which is kind of cool to explore.

Confirming the freq was listed as 434mhz, a short trip to the beach (I live just under a mile from the sand), and 3 minutes spent searching from 433.5-434.5 revealed the actual freq (I guess it can be varied from 434.0 through user programming) to be 434.205. Loud and clear whenever the big swarm of birds flew close; weak and barely there when they flew away.

And, contrary to Nicky's confident assertions, the only transmitting the station is doing is via cellular for data backhaul.