NestWatch by the Cornell Lab
3.0star
132 reviews
10K+
Downloads
Everyone
info
About this app
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.
Features:
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 http://nestwatch.org/.
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.
Features:
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 http://nestwatch.org/.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
Ratings and reviews
2.9
125 reviews
Samra “Sam” Bufkins
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March 21, 2025
Horrible and unusable on Android. It will not respond. Installed and uninstalled 3 times. Locked up my phone, slows down the phone, and crashes the phone. Merlin and iNaturalist work perfectly on my Samsung Galaxy A 54 5G. It's not my phone, it's this app. Seems to work OK on a colleague's iPhone, but nobody with an Android likes it. I have to carry a notebook into the field. I'm on a team checking 66 nest boxes weekly. This needs to be fixed.
3 people found this review helpful
Cornell Lab of Ornithology
March 23, 2025
Sorry to hear you are having trouble. Please try the new version 3.4.8 in the Play Store.
You may also need to clear the app's data (https://www.samsung.com/sg/support/mobile-devices/how-to-clear-the-app-cache-and-data-on-your-galaxy-phone/). You will need to login afterwards.
If this doesn't help please contact us here - NestWatch@cornell.edu
Julia Ecklar
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April 15, 2025
UPDATE: Have used this app for the last 5 yrs. Started this season, and app suddenly does not work AT ALL! Freezes up immediately upon opening, sometimes crashes. Re-installing does not help. Very disappointed. ☹️ OLDER: I love the NestWatch program, and the new design of the app is much more intuitive. It also seems to run more smoothly on my phone. Samsung S24 FE running Android 14.
14 people found this review helpful
Cornell Lab of Ornithology
April 17, 2025
Hi Julia, Apologies, an update to address these problems is on the way. Be on the lookout for an app update shortly, and in the meantime, please feel free to upload our nest data using our website NestWatch.org. Let us know if you have any questions at nestwatch@cornell.edu.
Joel Bacon
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June 13, 2024
When using the Android version of NestWatch in the field I often get multiple nest visits, sometimes 2, 3 or 4 instead of the 1 nest visit that truly occurred. I have tried airplane mode; I have uninstalled and reinstalled the app, but neither has provided a solution. Using the clunky app beats having to pack a clipboard, paper and pencil, but it is aggravating to have to check everything over on my MacBook Pro, making all the deletions and adding data that never made it to my desktop.
5 people found this review helpful
Cornell Lab of Ornithology
June 20, 2024
Hi Joel, We're sorry to hear about your experience. Our programmers are working on an update that we hope to release soon, and it should help the app work much smoother. For those that are experiencing usage issues with the app, we recommend using the online data portal in the meantime - we apologize for this inconvenience.
What’s new
We fixed issues that were discovered during the beginning of the nesting season.
App support
About the developer
CORNELL UNIVERSITY
cornellbirds@cornell.edu
341 Pine Tree Rd
Ithaca, NY 14850
United States
+1 607-254-2865
