migratory

Instead, it is called D1 and originates from wild birds that likely came along the migratory Pacific flyway.

There are also concerns for the survival of migratory birds, many of which make stop-offs on Britain’s vast shorelines and estuaries.

At the same time, the lake is growing saltier as it shrinks, bringing changes to a habitat that is a vital stopover for migratory birds.

A host of migratory birds from the Pacific Flyway are making it a regular stopover.

“They are consequences of the restrictive migratory policies that the government of Mexico is implementing.”