NestWatch is a nationwide nest-monitoring program designed to track status and trends in the reproductive biology of birds. Participating in NestWatch is easy and anyone can do it.

How to Participate

  1. Take the online quiz to get certified
  2. Find nests
  3. Record data
  4. Submit online or with the mobile app

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NestWatch News

Featherless Purple Martin nestlings and one egg lying in nesting material.

Nest Parasites and Purple Martins

January 2021

In this month’s blog post, we share some new research concerning Purple Martins and parasite-reduction tactics.

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young bluebird nestlings in a nest

Eastern Bluebird Nestling Growth Chart

January 2021

We’ve got a free resource that can help you age your Eastern Bluebird nestlings!

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Prothonotary nestlings in a nest

Bulk Uploads Keep January Bustling

January 2021

We were able to bulk upload 1,199 nest records from 3 contributors this month.

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American Kestrel perched on a tall pole

Great Backyard Bird Count Coming Soon

January 2021

Join others across the globe in this annual effort to count birds in backyards and beyond.

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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

Cornell Lab of Ornithology