Blog

NestWatch Blog Posts

  • Three blue eggs in a nest made from twigs and small branches. There is plastic incorporated into the nesting materials.
    Join Our New Study on Plastics in Bird Nests

    We’re noticing more birds weaving bits of human-made materials—like plastic bags or fishing line—into their nests, and we’re curious about what that means for their success. Could plastic pose risks, or might it offer some unexpected benefits? This summer, we’re teaming up with a Cornell University student to find out, and we’d love your help. If you find and monitor an American Robin, Gray Catbird, or Northern Mockingbird nest, you can snap a couple of quick photos (from the side and above) and upload them to NestWatch. By comparing nests with and without plastic, we can learn more about how these materials affect birds.

  • Charred wooden boards
    Is “Shou Sugi Ban” Suitable for Nest Boxes?

    With the help of NestWatcher David Alva, we went on a learning journey about the centuries-old Japanese technique of shou sugi ban to find out if it would be suitable for a birdhouse. This wood-charring method creates a weathered look that adds durability and beauty without the need for chemical treatments.

  • Inspection Cams Bring Nests Into View

    Have you found a nest that is hard to check? Maybe a nest inspection camera is the right tool for you! Read on to learn about this technical solution to monitoring nests that are in tight spots.

  • nest box on a tree with the guard installed, and a snake nearby; illustrated
    How to Protect Tree-Mounted Nest Boxes from Snakes

    Most predator guards that prevent climbing predators are built for nest boxes that are mounted on poles. New research supports the effectiveness of a simple DIY predator guard meant to deter snakes from tree-mounted boxes.

  • a grassy nest in a wooden box with three blue eggs inside
    How Does Drought Affect Eastern Bluebirds?

    Climate models are predicting drier conditions and more persistent droughts in North America. Thanks to contributions from NestWatchers, scientists were recently able to conduct the first range-wide analysis on the effects of drought on Eastern Bluebird breeding success.

  • How Do Nest Parasites Affect Purple Martins?

    Recent research reveals that a strategy thought to reduce ectoparasites may not have the presumed benefits some nest box landlords expect. According to the new study, replacing nest materials infested with parasites is not a recommended practice due to its lack of benefits and potential for stressing nestlings.

  • A male House Sparrow looks out of his nest box.
    How Are People Managing Invasive Birds At Nest Boxes?

    A new study from NestWatch investigated how many people had experience with non-native birds in their nest boxes. The study explored peoples’ knowledge of House Sparrows and European Starlings, and their attitudes towards managing them, especially if people encountered these non-native birds in their monitored nest boxes.

  • Gulls Just Wanna Have Data

    For seven years, Cornell University students diligently collected nesting data on two species of gulls in Maine. Recently this large data set has come home to roost in our NestWatch database via a generous bulk-upload contribution from Dr. David Bonter.

  • Seven speckled eggs lie in a fluffy nest
    From Pest to Guest: Solving a Neighborhood Bird Problem Peacefully

    When Pygmy Nuthatches were creating a nuisance in a Colorado community, one woman stepped in to advocate for a peaceful solution. That act of peace eventually changed the arc of her life—taking her from occasional birder to self-taught citizen scientist and community activist.