| 1 | And when winter comes, they all fly south to the Mediterranean. | |
| 2 | Had the redstarts relied on internal cues alone to schedule their spring departure, they would have all left their winter territories at the same time each year. | |
| 3 | Only love a little thicker storage, winter will not be frozen. | |
| 4 | About 70 Chinese mergansers choose to spend winter here. | |
| 5 | This new research shows that changes in rainfall on the tropical wintering grounds could be equally disruptive. |
