The blue-winged warbler (Vermivora pinus) is an uncommon to locally common breeder whose population s apparently increasing. It is a breeder in the southern part of BCR 14 up to southern New Hampshire. The blue-wing prefers reverting old fields with scattered shrubs and small trees near water. It is listed as a Species of Greatest Conservation Need in one or more states in BCR 14.
This warbler nests in brushy growth in old-field situations, in regenerating or sapling-size clearcuts in hardwoods, and in brushy borders of streams or field edges.
Its territory ranges from ½ to 2 acres.
Habitat Management Practices
Maximize the amount of hardwood regeneration near streams, water bodies or on moister soils. Maintain shrubby conditions in old fields by mowing in the vicinity of streams, water bodies or on moister soils.
When assessing properties for habitat management potential for this warbler, look for hardwood-producing soils that are on the moister side, such as Dixfield, Howland, Peru, Skerry, or Sunapee. Soils with similar properties in the southern part of BCR14 include Gilmanton, Metacomet, Pittstown, Scituate, Woodbridge.
- For hardwood stands on the appropriate soils, use even-aged management with 120-year rotation age and 10-year entry periods. Cut blocks should be 5 acres or larger.
- Rotate brush-hogging in old fields every 3 to 5 years.