 Cam Walker, oo ah macalin ka tirsan Jaamacadda Caafimaadka iyo Sayniska ee Oregon isla markaana ku takhasusay jirka baniaadamka, kaasi oo ka caawiyay ardayda fasalkiisa in ay ogaadaan in xubnaha haweeneydan ay ku yaaliin meel aanan marnaba laga filanayn oo in lagu arko ay nadir tahay. 