Specialty breed - Members of the Northwest roller club are accused of killing birds of prey, some endangeredShowing a visitor through the Hillsboro shelters where he raises "roller" pigeons, Ivan Hanchett described how he trapped hawks so they wouldn't bother his precious flock. He suffocated the hawks in garbage bags, he said, and put them in the trash, noting he had "never seen a hawk that could hold its breath more than three seconds." Hanchett went on: Oregon aficionados of the roller pigeon -- a special breed flown in competitions -- commonly capture and kill hawks and falcons that attack...