UMPQUA -- With four distinct hoots and a box of white mice, Amy Price lures a northern spotted owl within close range of her Maglite.The bird arrives with stealth, but not before it replies with territorial hoots of its own in the darkness of the night. The hoots tell Price the bird is male, and she surmises it's the same one researchers saw last March in the area with a female spotted owl six years his senior. But he isn't the only male owl to reply. A barred owl first hoots at Price, perched on a ridge overlooking the Umpqua …