I used to sit on our deck,on summer evenings and look at the stars. This was on a farm south of Saskatoon. Infrequently, these lights would appear in the southern sky always orange in color, flaring very intensely, going out, reappearing. I would guess their height at 1000 feet. The funny thing was they would totally disappear if I went and got anybody, except once when my nephew witnessed them with me. I am not a nut, I don't drink and I don't do drugs. I've been off the farm for ten years but I'm confident that if I sat and watched for them again out there,I'd see them again.