39 reviews
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About this app

Warbler Guide App
Tom Stephenson & Scott Whittle

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 of The Warbler Guide in your pocket—plus unique new app-only features.
The app allows you to identify birds by view or song, quickly and intuitively. Exciting new 3D graphics enable you to view a bird from the exact angle you see it in the field. And the whole range of warbler songs is easily played, compared, and filtered.

Breakthrough features from The Warbler Guide book that are included in the app:
• Rapid and confident two-step ID process using visual finders and comparison species
• The first complete treatment of warbler songs, using a new objective vocabulary
• An intuitive visual finder that includes side, 45-degree, and undertail views
• Master Pages with detailed ID points
• Complete guide to determining the age and sex of warblers with photos of all ages and sexes
• Annotated sonograms showing song structure and key ID points
• Complete songs, chip calls, and flight calls for all species
• Comparison species for making confident visual and audio IDs
• Many additional photos to show behavior and reinforce key ID points
• Highlighted diagnostic ID points
• Color Impression Icons for narrowing down ID of warblers from the briefest glimpses
• Behavior and habitat icons

Unique new app-only features:
• High-resolution, zoomable, and rotatable 3D models of birds in all plumages, to match field experience of a bird
• Intuitive, visual, and interactive finders with filters for possible species based on audio and visual criteria chosen by the user
• Playback of all songs and vocalizations with sonograms makes study of vocalizations easy
• Selectable finder sortings grouped by color, alphabetical order, song type, and taxonomic order
• Interactive song finder using objective vocabulary for fast ID of unknown songs
• Simultaneous visual and song finders make identifying an unknown warbler even easier
• Half-speed song playback allows for easier study of song structure
• Comparison species with selectable side, 45 degree, and undertail views
• Features 75 3D images
• Covers 48 species and 75 plumages
• Includes 277 vocalizations, 156 songs, 73 contact calls, and 48 flight calls
• Detailed "how to use" tutorial screens

Tom Stephenson’s articles and photos have appeared in Birding and Bird Watcher’s Digest, at Surf-birds.com, and in the Handbook of the Birds of the World. He has guided groups across the United States and Asia. A musician, he has had several Grammy and Academy Award winners as clients, and was director of technology at Roland Corporation. Scott Whittle lives in Cape May, New Jersey, and has twenty years of experience as a professional photographer and educator. He holds an MFA in photography from the School of Visual Arts in New York, is a fellow of the MacDowell Colony, and is a onetime New York State Big Year record holder.

Requires Android 4.1 or later.
Updated on
May 5, 2019

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Ratings and reviews

36 reviews
Michael Unimax
June 16, 2023
Like many other users on newer Android devices, while the audio for the calls does work fairly well, the images do not show when selected, only a blank page with the text at the top cut off. This app worked brilliantly on my older Android. Disappointing. I interviewed Tom Stevenson on a podcast back in 2020 when the app was new, and he was great, so was the app. Now... not so much. C'mon, Princeton Press! How about a little help? You got our money, how about some support?
12 people found this review helpful
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Charles Tang
June 15, 2023
Love the app when it is working. Best app for warblers until the last upgrade. Keep downloading assets but will not install it. I have the Pixel 7 pro and the latest android system. Please fix the problem and I will change the rating. Right now with the spring migration, this app is useless! Wrote directly to Princeton press. They are aware of the problems with Android system. I waited a long time and the app is still not worked on. Spring migration has came and gone. When will it be fix?
1 person found this review helpful
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Hilary Russ
September 5, 2020
This app is extraordinary when it works. It has been glitchy lately in the field, occasionally showing birds that should be out of range but not showing a bird that very much should have been listed for the geography and season. It took forever to find a help page. I emailed. Got no reply. This is the most I've ever paid for an app so I wish it didn't suddenly get glitchy lately. Now that I'm connected to WiFi it seems to be ok but how often is there WiFi in the middle of nowhere in the woods?
7 people found this review helpful
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What's new

Improved storage management.