Scott Whittle

A field guide that revolutionizes warbler identification

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...

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...

BirdGenie™ is a breakthrough app that helps anyone with an Apple® or Android® smartphone or tablet accurately identify birds in the backyard, local park, or on the nature trail—all with the tap of a button! Just hold up your...