There are some techniques we can use within a GIS system. You saw where Bill Evans has shown with his acoustics research where you would likely have a species like Kirland's Warbler. You could then match that to radar imagery and start to interpret where sensitive species may be moving through the country. In the big sense, these data may be used to cue research to hone in on where we have a prior history of towerkill characteristics. These characteristics include low visibility, tower location, and the use of more local studies to ground truth and get the detailed information on the ground.
Ground truthing is one of the huge challenges in all remote sensing work on birds.
You must have good quality ground truthing to make sense of these larger datasets. This, specifically, means measuring the numbers of birds that move. But you actually have to physically be on the ground if you want to turn that into some measure of the individual number of birds. Ron Larkin's work in the mid-1980s is a good example of how you go about calibrating that kind of imagery. I've put together a table of some of the commercial technologies.