A bird that nests in a specified manner or place:a scarce nester in Britainhole-nesters...
Not surprisingly the grey wagtail is a scarce nester in Norfolk.
These birds are common nesters at airfields and airports throughout their range.
European Starlings are cavity nesters, and nests are generally located in natural hollows, old woodpecker holes, birdhouses, or building eaves and crevices.