A pile of goat manure was likely the primary factor in a fire Tuesday afternoon on a farm outside of Coupeville that took almost six hours to completely extinguish. Central Whidbey Island Fire and Rescue personnel responded to a reported fire at around 4 p.m. on Engle Road. A 40-foot-long metal storage container filled with approximately 400 bales of hay had caught fire. Resident and farmer Mark Borden said he was burning weeds outside the container when he thinks some of the goat manure caught fire or at least got hot enough to combust. It was sitting next to the container and likely heated up the metal structure. When he left the area, there was no fire, he said. He returned approximately 30 minutes later to see small flames in a patch of grass. He poured water over the flames only for the patch of grass to immediately reignite, he said. The metal container seemed to have become so hot it lit both the grass outside and the hay inside on fire.