Previous outbreaks worldwide have been blamed on migratory birds or contaminated feed.

Smoking-induced oxidative stress may be involved in impaired migratory activity of PB-MNCs.

It's an important habitat for native fish, waterfowl, migratory and coastal birds.

In the case of migratory birds, we have again a navigation problem.

The gorilla is of migratory habits at some seasons of the year.

Fish & Wildlife Service conducted its 17th annual census of migratory waterfowl.

The migratory instinct seems to subdue for a season the predatory instinct.

The blood-sucking bats were comparatively few, and the migratory sort fewer still.

The other half, however, are not nearly so migratory as the lumberjack.

Are migratory birds accelerating the spread of avian influenza around the world?

I dug out a scraper and chipped away, cursing my migratory instincts.

The usual charge that the Negro is naturally migratory is not true.

White sharks are highly migratory and segregate by sex, age and size.

Government experts said it might have been infected by migratory birds flocking south.

Just two years ago, Peru had introduced new migratory laws to accommodate Venezuelans.

We also extend relevant treatment recommendations to migratory workers from other ethnic groups.