NestWatch is the Cornell Lab of Ornithology’s citizen-science project that tracks nesting birds in North America. Found a bird’s nest? You can report it for science.
Sign in to:

•Add a nest location using the interactive map.
•Add data on species, number of eggs, number of young, hatch date, and other pertinent details.
•Contribute to North America’s largest database on avian nesting success.

•Full offline functionality, enabling use in places with limited or no Internet connection or cellular service.
•Enter bird nest observations from anywhere in North America.
•Track your nesting statistics in real time.
•Ideal for managing nest box trail data.
•Automatically syncs with web version for seamless multi-user and multi-platform support.
•Your data are openly available for scientific research, education, and conservation right away.

Learn more about monitoring birds’ nests for science at

What’s New

Version 3.0.2

Fixed issue causing data-loss in specific offline-mode scenarios
Added 'A->Z' sorting option to your nest list
Added 'reset' option to more observation fields
Clarified language on mapping tool

Ratings and Reviews

4.2 out of 5
6 Ratings

6 Ratings

Now This! ,

June 2021 update

Location services must be enabled for the app to work. Otherwise, the app gets stuck while "getting your nest in order, step 3 of 7."

Al 123457789 ,

New Version is much better (May 2021)

The new version in May 2021 is a major improvement and has allowed me to use the App again! I have a large collection of nest boxes and earlier this year the old app became unusable. This upgrade came just in time to let me keep working in the field! The photo management is much smoother, the map, filtering, and summary pages are quick and I have yet to crash!

Thank You!

abc123MG ,

Great update! Easier to use and nice new features

Excellent update that makes it much easier to enter nest observations. Love the new dark mode - makes it easier to see in the bright sun. Also, notable improvements to the map and adding new nests.

App Privacy

The developer, Cornell University, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • User Content
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Contact Info

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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