There's a 1300-acre photovoltaic plant in San Benito County that sits on a 5000-acre wildlife preserve. It's a bit of a natural experiment in that area.
I wonder if they did a survey now if they find the density of animals higher under the panels than out in the open.
Once you consider heat from the sun, and hunting birds looking at small prey in open fields I would not be surprised that the panels provide shelter that the wildlife uses.