A grey-leg goose mother is sitting on her nest on the ground. One of the rolls out of the nest. The mother uses her head to gently push and roll the egg back into the nest. It is an example of ethological displacement?

Yes, it is. Ethological displacement is a behavior or pattern in animals, where they are conflicted due to some unusual event and hesitate to make movements to touch or do what they want to do. The grey-leg goose mother did not expect the eff to roll out, so she gently pushes it back.

Explanation: Displacement activity is a behavior where animals face a situation that can be stressful or unpleasant for them, very commonly an event that is out of their routine. Animals hesitate on doing an action and make movements such as scratching, feeding, or preening. In this case, the grey-leg goose mother made a quick, but soft movement to put back the unexpectedly fallen egg.

the answer of "what has three legs but never walks" is a yard stick. this answer can be found at

soft,hard and rough for soft would be a pillow or a stuffed animal hard wood floor or a table rough paint