I agree with them migrating. And, if someone begins building, or changing their area, you may well get the same type primal screams I got when they return. If you recall they clear cut 972 acres directly behind my property, and I will always believe they were heartbroken and saddened to see the destruction of their woodlands. Also, here, is a WMA, and they've drilled CO2 wells all through it and destroyed woodlands too. I am still getting whistles, but not as many. I think they're staying cool somewhere nearer to the reservoir, river or springs.