Canadian Geographic magazine refers to a radio broadcast from Yellowknife, Northwest Territories, that told of ravens perching on sloped metal roofs of commercial buildings, apparently waiting for unsuspecting pedestrians to pass below so they could send the accumulated snow sliding down upon them.
Ajakiri „Canadian Geographic ” viitab Loodeterritooriumil Yellowknife’is eetris olnud raadiosaatele, milles räägiti ronkadest, kes istusid kaubanduskeskuste kaldus metallkatustel, oodates ilmselt pahaaimamatuid jalakäijaid alt mööduvat, et neile lumehunnikuid kaela veeretada.