Explanation:

- The bird starts from its nest and flies 25 m towards the north-east.

- It then takes a right turn, which means it will now be facing south-east, and flies 7 m.

- Again, it takes a right turn, so it will now be facing south-west, and flies 75 m.

- To determine the bird's final position from the nest, consider the initial north-east direction and the subsequent turns.

- Option 1, North-East: This is unlikely because the bird made turns that took it away from this direction.

- Option 2, East: The bird's path doesn’t align with purely east after the turns.

- Option 3, South-West: Considering the final turn and distance, this direction fits the bird’s last movement.

- Option 4, North-West: The bird didn’t move in this direction.

- Answer: Option 3, South-West