I remember well the concerns about disruption to migratory patterns and other problems with the wildlife that never became an issue.

But the scholars who have suggested such migratory patterns could not come up with sufficient evidence to prove their theories.

It is believed to not exhibit any north-south migratory patterns.

It is not known with certainty if they follow a migratory pattern.

"It is not clear why, but probably because of traditional migratory patterns," he said.

"If you do that around the clock, you can get an idea of their migratory patterns."

Certainly, we have added some unexpected twists to their migratory patterns.

It's made them break a migratory pattern that goes back thousands of years.

One species may require several habitat locations for different periods in their migratory patterns.

BY now it is something of a migratory pattern.