Colima Warbler (Vermivora crissalis)
- Range, habitat requirements, and food preferences of this species.
- http://www.npwrc.usgs.gov/resource/birds/forest/species/vermcris.htm

Lucy's Warbler (Vermivora luciae)
- Identification tips, life history, range map, and taxonomy chart for this bird.
- http://www.mbr-pwrc.usgs.gov/id/framlst/i6430id.html

Orange-crowned Warbler (Vermivora celata)
- Detailed photos of this songbird's plumage and information about its range and nesting behavior.
- http://www.wbu.com/chipperwoods/photos/ocwarb.htm

Tennessee Warbler (Vermivora peregrina)
- Photos plus data on this bird's nesting, diet, range, and migration route.
- http://www.birdnature.com/tenwarbler.html

Blue-winged Warbler (Vermivora pinus)
- Life history, identification tips, photos, sound recording, and breeding range map.
- http://www.mbr-pwrc.usgs.gov/id/framlst/i6410id.html