Perhaps it was due to the limited materials available. Even as Dean and Massa approached within five or six meters of the temporary campsite, they hadn't discovered any more traps. At this distance, they finally saw the true appearance of those 'scarecrows'.
On crude wooden crosses, four blood-stained human skins, stuffed with weeds and with their heads wrapped in torn cloth, were hung in a row. They swayed in the wind, resembling four oversized, blood-red rag dolls.
The blood on the human skins had dried. Bloodstains were scattered on the ground, implying that after the skins were stripped, their creator had eagerly fashioned them into straw-stuffed figures and hung them here.