I live in Portland, Oregon and have collected barn owl pellets here for 9 years. I have some strong theories about the owls on 84 in Idaho. My friends, and I have been working on theories for a couple years now, but more information is still needed. Some of my friends believe the owls follow 84 as if it was a river, and hunt along it as well. There has been a drastic decline in rodent (vole) populations in central, and eastern Washington in the past 2 1/2 years. Places where 7-12 owls where once living in one windbreak have not had barn owls in them since around the fall of 2005. I am talking about hundreds of places that once held colonies of owls that now have no sign of them. Where have they all gone? Perhaps they followed the Snake River until they found food.