Tourism exploded into an annual southern migration, transforming the Spanish economy, landscape, and society.

This behavior begins just prior to the southern migration and continues on the wintering grounds.

The tribe continued their southern migration into Texas and northern Mexico where they allied with the Lipan Apache.

The East Australian Current is a strong southerly current that the humpback whales make use of during their southern migration.

The seals had started on their great southern migration, and the rookery was practically deserted.

Gone is the frantic preparation for the southern migration of most of the shore birds as well as the upland ones.

Therefore, people from the southern migration, probably in India, must have struck inland to reach the Levant and, later, Europe, the geneticists say.

But for Mrs. Hyams and her husband, Ira, a semiretired lawyer, the notion of joining the southern migration leaves them - shall we say - cold.

The southern migration is peaceful, but those damned flying saucers keep scaring the buffalo, and there are many difficult and hungry days because of it.

Only one tag worked, and it failed after 40 days, just as the whale was expected to start its southern migration.