The most oft repeated reason I have heard thus far, is population decline due to resource development and habitat encroachment. Another (but less repeated reason) are landowners who feel the only good Grizz is a dead one, whether it is minding it own buisness or not.
At any rate the season was lost and we may never get it back again.
What were the rasons for the extinction of the Grizz in Colorado? Was the situation there much the same as it is becoming here?