Bird & Nest Information

House Finch eggs by Angie Grace Isaac
  • a nest made of fluffy materials and containing 5 white eggs.
    Common Nesting Birds

    Found a nest? Want to know who you might find living in your area? Start here!

  • four bright blue eggs in a nest
    Nesting Cycle

    A general view of the avian nesting cycle. We’ll bring you step-by-step through the process to understand how birds experience the nesting season.

  • an American Robin perched in a beautyberry tree,
    Landscaping for Nesting Birds

    What are the things you can do to make your space more wildlife-friendly? We’ve got lots of tips and tricks to make your outdoor areas the best they can be for attracting nesting birds.

  • five white Purple Martin eggs in a leafy nest
    Clutch Size & Phenology for Common Species

    Learn the typical clutch size and length of incubation and brooding periods for 70+ species common to North America.

  • a song sparrow feeds a, much larger, cowbird chick
    Brown-headed Cowbirds

    Brown-headed Cowbirds are native to North America, and have a unique nesting behavior known as brood parasitism. Learn all about the ecology of this fascinating behavior, and what, if anything, you need to do about it.

  • a fledgling robin standing on a wooden beam
    Myths About Nesting Birds

    Think you know birds? Think again! We’ve regulated this section to debunking common myths about birds and their nesting behaviors.

  • several sleepy ducklings on a log
    Words About Birds

    Stuck on a term? Looking for definitions? We’ve got you! Go through our alphabetized list of vocabulary related to breeding birds and their nesting cycles.

Photo credits: Say’s Phoebe nest by Kimberly Schug, Chipping Sparrow nest by Red Wing Birding, American Robin by Sujata Roy, Purple Martin nest by Diane Seward, Song Sparrow and Brown-headed Cowbird by Christine Haines, American Robin by Amee Benoit, Wood Ducks by Tamra Tiemeyer.