Tom Stephenson

This is a handy, pocket-sized foldout reference to the 45 most commonly seen North American warblers.

 

• Photos include side-on, underside, and 45-degree views
• Drawings of undertail patterns provide at-a-glance comparisons between...

The Warbler Guide App is the perfect companion to Princeton’s revolutionary and widely acclaimed book The Warbler Guide, by Tom Stephenson and Scott Whittle. Whether for study or field use, this innovative app delivers the full power...

A field guide that revolutionizes warbler identification