Birds don't know what a car is, they just need to defecate. Also, they often defecate as they fly so their poop falls just anywhere.
Of course they do.
Pigeons do not defecate on the wing, but must be landed to defecate. Their legs grip the base of the tail during flight to increase streamlining, and means they cant defecate on the wing as other birds do, such as seagulls.
Seagulls do...for sure!
59%
Um... yes! Every living thing can
birds
Birds defecate anywhere they happen to be when they need to do that -- they go into the porch for other reasons such as to get shade, shelter from rain, protection from predators like hawks or to nest.
birds hit cars
The same as all birds. The difference is they will pass the majority of waste when in water
Any and all. It is a way of lightening the body for flight.
No
no because cars have an engine