Various studies have concluded that song overlapping, the phenomenon where one bird begins a song while another of its species is singing, is a signal of aggression.
Setup
There have been a bunch of studies that observed one bird cutting in while another bird is singing a song. It's called song-overlapping -- drowning out your buddy with your own song, right after they started singing a song.
Researchers see this as an act of aggression.
The author points out that their only evidence that song-overlapping is an aggressive act is an observation of the behavior of the bird who got their song cut off.
The author is saying that you'll see whatever it is you're looking for".
Essentially, the author is saying, "Hey guys. I've heard your theory about song overlapping. But your evidence is just looking at the reactions of the birds whose songs get cut-off, and choosing to interpret it as aggressive. "
Goal
So we know what goes in this blank is some sentiment like,
But because this is LSAT, you don't expect a full throated rejection. We don't want to act like we know that song-overlapping isn't aggressive (that would be us committing the Unproven vs. Proven False flaw).
We want a very moderate version of, "your research conclusion is dumb."
Something like - insufficient evidence for your hypothesis to be compelling - we shouldn't conclude it's an aggressive behavior based on this evidence