Master Guide to the Warbers of Canada
- Identification guide covering each species of the Parulidae in Canada.
- http://www.royalalbertamuseum.ca/vexhibit/warblers/

Warblers Collection
- Collection of about 4000 audio files (in RealPlayer format) of North American wood-warblers.
- http://worlddmc.ohiolink.edu/media/borror/blbLogin

Warblers of Eastern North America
- Species accounts, including range maps and paintings.
- http://www.nearctica.com/birds/warbler/ewarbler.htm

Warblers Migrating
- Photographs and a short text about warblers of North America.
- http://www.wbu.com/chipperwoods/photos/spwarb.htm

Sonographic Field Guide to Western Warblers
- Sonographs of 12 warbler species.
- http://home.pacifier.com/~mpatters/archive/warbler/sonoguide.html