この前畑でこの現象見たよ(;´Д`)木にﾋﾞｯﾁｼのﾄﾝﾎﾞが刺さってるの

http://www.google.co.jp/search?q=%E7%99%BE%E8%88%8C%E9%B3%A5%E3%80%80%E3%81%AF%E3%82%84%E3%81%AB%E3%81%88&start=0&hl=ja&lr=lang_ja&ie=utf-8&oe=utf-8&client=firefox&rls=org.mozilla:ja:official