Feathers flew when ducks crossing the road caused a crash.
Whanganui police said when a driver stopped for ducks crossing the road in front of them, the driver in the vehicle behind was unable to stop in time and their car crashed into the back of the front car.
It was one of 36 crashes Whanganui police attended and investigated in October.
Sergeant Damon Evans said drivers needed to maintain a safe following distance.
"You should give yourself space to react if something goes wrong on the road ahead and be able to stop short if need be. Following distances are more important on the open road where speeds are greater," Evans said.