May I? EggsAckley!
I am going to say, due my experience, I'm sceptical that birdstrike(s) could cause that type of catastrophic failure to not only the motors, but also the airframe. Tails, wings, and motor mounts are constructed pretty robustly.
When there are aircraft crashes, the mjority of the plane stayts together until impact.
Ditto.
You don't suppose the birds were wearing tool belts? If they find birds with tool belts, I'm leaving this planet.