NestWatch by the Cornell Lab

NestWatch by the Cornell Lab

by Cornell University

17 ratings
24 reviews
Free
With Ads

Details

  • Released
  • Updated
  • March 1, 2017
  • June 29, 2026

Features

NestWatch by the Cornell Lab screenshot #1 for iPhone
NestWatch by the Cornell Lab screenshot #2 for iPhone
NestWatch by the Cornell Lab screenshot #3 for iPhone
NestWatch by the Cornell Lab screenshot #4 for iPhone
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About

Contribute to citizen science by tracking nesting birds across North America. Record nest locations, species, and nesting details to build a comprehensive database for scientific research and conservation efforts. The app offers offline functionality for data entry in remote areas.

Report bird nest locations
Enter species, egg, and young data
Contribute to avian nesting success database
Offline functionality
Track nesting statistics
Manage nest box trail data
Syncs with web version
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What's New in NestWatch by the Cornell Lab

3.7.10

June 29, 2026

In this release: * Updated map experience including nest filtering. * Nest details can now be edited after creation. Thank you for NestWatching!

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User reviews

Great app for bird lovers

I absolutely love using the nest watch app! It’s intuitive and well designed so that it makes it easy to track nesting birds anywhere I go. Logging data is straightforward and detailed. You can log everything from nest materials to the number of eggs and hatchlings, which makes the observations really meaningful and accurate.

Another thing I love is the ability to upload photos. It’s super cool to look back and see the progress of birds as they grow up. I’ve learned a lot about local species and their nesting behaviors through the app.

Highly recommend to anyone who enjoys birding and wants to contribute to real scientific research. The Cornell Lab of Ornithology has done a great job with making an app that’s super fun and easy to use!
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Great app for bird lovers

I absolutely love using the nest watch app! It’s intuitive and well designed so that it makes it easy to track nesting birds anywhere I go. Logging data is straightforward and detailed. You can log everything from nest materials to the number of eggs and hatchlings, which makes the observations really meaningful and accurate.

Another thing I love is the ability to upload photos. It’s super cool to look back and see the progress of birds as they grow up. I’ve learned a lot about local species and their nesting behaviors through the app.

Highly recommend to anyone who enjoys birding and wants to contribute to real scientific research. The Cornell Lab of Ornithology has done a great job with making an app that’s super fun and easy to use!
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App is unusable

Wonderful idea for an app but it’s basically unusable. The app constantly glitches and crashes. I can’t even load previous nest data or enter new data while in the field despite having good service. Had the same problem last year and it’s still not fixed.

Response from developer

Thanks for your feedback, we're sorry to hear you're having issues with the latest version of the app. Please contact us at NestWatch@cornell.edu for help troubleshooting.

I’m about ready to give up

I’ve enjoyed entering data in Nestwatch for several years, but this year the app has become basically unusable for me. If I try to make more than one entry on a single day, I can usually make the first entry ok, but after that the Submit button doesn’t work. This happens whether I’m trying to enter data for more than one location on a single day, or for more than one date for a single location.

I have been in contact with customer support, but they haven’t been able to help me. I’ve lost track of how many times I’ve deleted and reinstalled the app. I’ve updated my iPad, rebooted my iPad, and tried going thru the website to enter my data instead of using the app. Nothing works. I’m watching two active nest boxes right now. Today I visited both but can’t enter both observations today, so I’ll try to remember to enter the second visit tomorrow. This is seriously getting to be more trouble than it’s worth.
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Response from developer

Thanks for your feedback, we're sorry to hear you're having issues with the latest version of the app. Please contact us at NestWatch@cornell.edu for help troubleshooting your issue.

Well laid out and comprehensive

I’ve enjoyed Merlin and other information from Cornell in the past, and this app brings it all into one location. They have a great layout to show you all the relevant information on the nests and the birds, and format for monitoring your own nests and houses

Developer apps

FAQ

What does the NestWatch app do?

NestWatch is a citizen-science project that allows users to track nesting birds in North America. You can report bird nest locations, record details like species, number of eggs, and young, and contribute to a large database on avian nesting success. The data collected is used for scientific research, education, and conservation.

What are the key features of NestWatch?

Key features include the ability to add nest locations on an interactive map, enter detailed observations about species and nesting progress, and track your personal nesting statistics. The app also offers full offline functionality, making it ideal for use in areas with limited connectivity, and automatically syncs with the web version.

Is NestWatch free to use?

The app is free to download and use. However, it does display advertisements. There are no in-app purchases or subscription fees required to access its core functionalities.

Can I use NestWatch without an internet connection?

Yes, the app provides full offline functionality. This means you can enter bird nest observations and data even in locations with limited or no internet connection or cellular service. Your data will sync automatically once you regain connectivity.

Who is the target audience for NestWatch?

This app is designed for bird enthusiasts, citizen scientists, and anyone interested in contributing to the understanding of avian nesting success in North America. It's particularly useful for individuals managing nest box trails or conducting informal wildlife monitoring.