Catching animals using Ivara is easy by using a sleep arrow with increased duration and range.

I used Prowl to stay hidden then Cloak Arrow to avoid the Echo Lure breaking the invisibility (Echo Lure breaks Prowl, but doesn't break Cloak Arrow it seems)

When the Bolarola spawns, since Prowl is still active, he can't see me. Sleep Arrow provides the same functionality as the tranq rifle, but I don't need to aim as accurately -- as long as I can get the Bolarole into the area of the bubble, they'll fall asleep and I can get a Perfect Capture nearly every time