It sounds interesting. I've been trying to find coverage maps for Starlink but so far, I haven't found any actual coverage maps. I seem to just find "planned" coverage maps. It's hard to see how these would get used for wildlife tracking at this moment. The initial devices will use an antenna that's 0.5 meters in diameter which for me, would be approximately from the base of my foot to my knee.
I think power consumption and coverage will also be main factors if the system gets used. Based on other satellite communications designs, the system would have to be pretty large by animal tag standards, even without the antenna, due to the batteries required to handle the maximal current. It would be interesting to test out some modules for this technology, though.
FYI for whoever's interested, you can sign up to be a potential beta user. More info here.