West Island residents in Montreal, Canada were intrigued and slightly creeped out last week by mysterious trumpeting sounds that seemed to come from the sky. There has been no explanation as to what could have been causing the strange noise, which you can listen to here The Montreal Gazette reports: Early theories suggested people in Dollard des Ormeaux were hearing echoes of a Pointe-à-Callières Port Symphony. But those events happen at 2 p.m., and the sky trumpets were reported during the evening. Would sound have carried that far anyway? It’s about 25 kilometres from the Old Port to D.D.O., and sound travels at Mach 1, so … we don’t know. Other atmospheric conditions would have to be factored in. The Montreal Gazette asked a spokesperson at Environment Canada whether there any been any unusual meteorologic conditions Sunday night. “Not that we’re aware of. There were no reports of anything in the Montreal area.” Witnesses to the sound say there was little to no wind at the time. Montreal Gazette Facebook followers had a field day with the mystery. “Don’t worry, Quebec will find a way to tax it,” posted one reader. “Could they be clearing snow out there?” suggested a reader. [...]