Eggs of seabirds were harvested from the large bird colonies until 1971.

The mountain is home to a very large bird colony that is popular with tourists.

Other situations can also be found where bird colonies avoid predation.

In all, the histories of 129 bird colonies were considered.

The bird colonies took a long time to recover.

This term is generally used in the study of bird colonies.

Like the other nearby islands, Craigleith is a bird colony.

People come not only to see the cliff's imposing size, but also the famous bird colony found there.

There are 1,521 islands, some nothing more than tiny bird colonies.

The world's largest bird colony is found on the islands off the coast of Peru.