Josh Passell of Watertown walks his dog Luna at Beaver Brook Reservation in Waltham on a warm afternoon on Tuesday, Mar. 10, 2015.  (Wicked Local Staff Photo / Brett Crawford)

Josh Passell of Watertown walks his dog Luna at Beaver Brook Reservation in Waltham on a warm afternoon on Tuesday, Mar. 10, 2015.  (Wicked Local Staff Photo / Brett Crawford)

Brett Crawford