I believe the sunbird would benefit the plant because it would pollinate them. Going from flower to flower, pollen would get stuck on it's feathers and it would pollinate other flowers, like a bee.
Answer:
Gravity, electricity, and magnetism are considered non-contact forces because they do not physically act on objects.
Explanation:
Gravity, magnetism, and electricity all use fields to act on objects without actually touching them. They can all force objects to move without touching them through these fields.