A little research shows that collisions between aircraft and wildlife are amazingly common. In fact, Mike Begier, the national coordinator for the Airport Wildlife Hazards Program, estimates that there are about 25 bird strikes each day in the United States alone, with about 14 percent, or three to four strikes a day, causing some damage. In fact, the accident airplane had experienced another bird strike the day before the accident, with damage to the left engine. The left engine mufflers were replaced the morning of the accident. Close encounters of the furry kind, while not as common, are much more likely to result in damage.