Anchorage, Alaska (KINY) Andrew Renner got 90 days in jail for killing the bears on Esther Island in Prince William Sound.
His son, Owen Renner received a suspended 30-day sentence. The two had skied to the location and Owen shot the mother bear. Andrew shot the two cubs.
The bears were part of a study by the U.S. Forest Service and the Alaska Department of Fish and Game. A motion-activated camera caught the shooting on video.
The older Renner, 41, was ordered to pay a $9,000 fine, forfeit his pickup truck, boat and trailer, weapons skis and cell phones.
His hunting license was revoked for 10 years. The son, 18, lost his hunting license for two years.
Authorities said the video showed the men approaching the den and noticing the female bear. The younger Renner fired at least two shots, causing the cubs to shriek. The men eventually realized the sounds were coming from the cubs, not their dead mother. Andrew Renner then shot the cubs.