When Marcy Cottrell Houle headed to the Zumwalt Prairie in the 1980s with her topo maps, tree-climbing gear and raptor leg bands to study hawks, she assumed wildlife and cows were incompatible. After all, that was the prevailing view — and there were millions of overgrazed acres across the West to prove it. So when the OSU grad student found hawks flourishing alongside cows in the northeastern Oregon rangelands, she was stunned.
