The durations and pauses were longer by as much as 350% in the feral population.

However recently the increasing feral population has led to the season being opened statewide.

There are also feral populations in the region, and it has been domesticated.

The environment proved ideal and the uncontrolled feral populations grew to high numbers.

A feral population of this species established itself in California during the 1980s requiring their capture and destruction.

The species has been introduced into many parts of the world and feral populations have become established.

There are feral populations of this bird in several counties in southern California.

One effect of the large feral population is a high and rising level of dog attacks.

The question was not: Should they try to save the world's feral populations?

In recent years a small feral population of mandarin duck has become established.