Yes, though it is extremely rare for a single bird to take down a modern commercial airliner. A supportive peer "aviation" fact: jet engines are designed to survive the ingestion of a single bird weighing up to 4 lbs without failing. However, a single large bird (like a 12 lb Canada Goose) hitting a sensitive area like the engine fan or the cockpit windshield at high speed can cause catastrophic structural damage or engine failure. The real danger usually comes from flocks (multiple strikes), as seen in the 2009 "Miracle on the Hudson." While 90% of bird strikes result in no damage, a single bird can certainly disable a smaller private plane or a helicopter if it penetrates the canopy and incapacitates the pilot.