The GRIN App

Available for Android and iOS devices, the GRIN app is a free tool that allows professional researchers to collect raptor data on their mobile device. 

Completely redesigned from the ground up

• An enhanced user experience with modularity in mind
• Icon-based navigation for improved readability
• Standardized terminology to ensure user confidence
• Toggleable filters to find what you need faster

Field data collection

• Record species, count, age, and behavior of raptor sightings right from your phone in seconds
• Survey in three modes: vehicle transects, walking/cycling transects, or fixed-point counts
• Capture location with GPS auto-capture, map tap, bearing/distance offset, or manual entry, all with high positional accuracy
• Log temperature, wind, and cloud cover with the new built-in weather module for every survey
• Attach photos directly to known birds and examination records
• No network required — the new GRIN app works fully offline

Global species coverage

• Searchable, filter-driven worldwide database of all raptor species
• Fully interactive public sighting map powered by global contributors

Rehabilitation and known-bird tracking

• Track individual birds via ring, patagial tag, or telemetry frequency
• Keep complete rehabilitation records: admission, treatment, measurements, weight, feeding, exercise, transfer, and release
• Access the treatment center directory straight from the app

Built for researchers, worldwide

• Available in 6 languages: English, Spanish, French, Portuguese, Russian, and Filipino
• Completely free to download and use
• Dedicated data locality for individual accounts, so multiple surveyors can keep separate records on one device
• Fully secure login and synced contributions with your GRIN account

The app allows The Peregrine Fund to provide a bespoke service for programs/ initiatives, so make sure to get in touch at with us and they can provide you with precise zones (based on the new searchable H3 Hex grid), routes and information to accompany your use of the GRIN app.

We can’t wait to see the new app in action and are really excited to bring an unparalleled experience into the world of Raptor conservation.

The best way to get data into GRIN is through the mobile app. 

Available for Android and iOS devices