Trapping can devastate local bird populations and also impact migrants at critical stopover sites.

Trapping also affects migratory birds at important stopover sites such as the Maltese islands.

The refuge serves as a stopover site for songbirds and other migrants to rest and feed during their seasonal migration.

An ecosystem necklace of stopover sites could provide the birds with the necessary means of survival.

Finding the best possible locations for stopover sites is to be accomplished with the help of volunteers under the direction of state coordinators.

The higher concentrations of migrating birds at stopover sites make them prone to parasites and pathogens, which require a heightened immune response.

The quality of food at migratory stopover sites is a critical factor in their migration strategy.

Large concentrations of Ruffs form every year at particular stopover sites to feed, and individuals marked with rings or dye reappear in subsequent years.

Migrating birds in Italy varied their diet according to what was available at each stopover site.

The five stopover sites - ranches and lodges - separate stages that vary from 35 to 75 miles a day.