A Colorado man who shot a woman in the head after mistaking her red Mohawk hairdo for a bird has been placed on probation, authorities say. Derrill Rockwell, 49, of Grand Junction, was sentenced to five years probation and ordered to pay more than $10,000 in restitution Friday after pleading guilty to felony possession of a weapon by a prior offender, the Grand Junction Daily Sentinel reported. Several other related charges against him were dropped, the newspaper said. \"This was a tragic accident, and I\'m truly sorry,\" he told the judge. Rockwell, who was banned from owning a gun for a 1995 attempted burglary conviction, told police he had gone outside with his .22-caliber rifle Oct. 5 to shoot a bird that had been harassing his cats. He shot once at what he thought was a red bird on a hilltop about 90 feet away, then heard a woman moaning in pain. He discovered a 23-year-old woman with a head wound. Deputy District Attorney Jason Conley told the presiding judge the woman may have been passed out from intoxication prior to being shot. He said investigator found a small bag of suspected methamphetamine nearby. Conley said the victim, who didn\'t attend Rockwell\'s hearing, has left the state. The newspaper said it was unable to contact her.