Where Birds Come to Life

Help Measure Nature's Success

nests, clutches, broods, and fledglings

For over a decade people like you have helped scientists by collecting valuable data on the successes and failures of nesting birds.

Eastern Bluebird Nesting Attempts

  • 0Most attempts previously monitored in a year (2010)
  • 0Attempts monitored in
Error Retrieving Data
But Don't Stop Now!

Nesting Attempts by State

  • 0
Error Retrieving Data

Photo ©

How To Count

  • 1 Get Certified

    Become a certified NestWatch monitor using our online resources and test.
  • 2 Search

    Find active nests to monitor.
  • 3 Visit Nests

    Visit the nests you found every 3 or 4 days and record what you see.
  • 4 Report Data

    Report your data using our online data entry tools.
Join Now and Count!

NestWatch News

Roosting In a Winter Wonderland

December 2014

Why do birds hang out in nest boxes in the winter? They’re basically looking for a cozy place to sleep—alone or in groups!

Attention Barn Swallow Study Participants

December 2014

It’s not too late to enter light pollution data for those participating in our Barn Swallow light pollution study.

Data Entry Improvement

December 2014

Now when you filter your nest sites by groups, your group filter will stay active until you change it. Enter your data now to get counted!

Happy Holly-Days

December 2014

The Cornell Lab of Ornithology will be closed December 25–January 4, for winter break. We’ll see you back here on January 5th.

More News More News

This material is based upon work supported by the National Science Foundation under Grant No. DRL-0540185. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).

Cornell Lab of Ornithology