Colorado Bluebird Project

Improving bluebird populations

The Colorado Bluebird Project operates under the guidance of Denver Audubon and is offered through POST Partners in Castle Rock. This volunteer-run project aims to improve the vitality of bluebird populations throughout Colorado and to inform and educate the public about bluebirds. For more information, see the project overview sheet (PDF).  

Since 2007, with the help of hundreds of volunteers and students from several Castle Rock schools, we have watched thousands of nests from native birds such as bluebirds, swallows, wrens and chickadees in nest boxes established all over Town. Each year, the monitoring efforts and data collected by volunteers are assembled into a summary presentation (PDF) that features highlights from the year, graphs of the project increases, project data and quotes from the volunteers.

Volunteers of all ages are recruited in February to assist with monitoring of the nest boxes from April through August. Additionally, volunteers help with maintenance and repair of older nest boxes. Wondering what to expect as a volunteer? Check out a slideshow (PDF) featuring photos provided by our volunteers from the 2021 season. For information on volunteering in 2022, contact us at 303-814-7456 or email us. 

Information about monitoring a nestbox

Feel free to download our Colorado Bluebird Project Volunteer Training Manual (PDF) as a reference for either your backyard monitoring or as one of our registered nest-box monitoring volunteers. We encourage those installing nest boxes in their own yards to follow these guidelines (PDF).

Bluebird nest boxes in Castle Rock

Bluebird boxes are located throughout Castle Rock on various public parks, trails, open space and school properties. View a map of all the locations.

  • Bison Park
  • Butterfield Crossing Park
  • Castle Rock Elementary School
  • Cedar Hill Cemetery
  • Crystal Valley Ranch (at Sellars Gulch)
  • Douglas County High School
  • Faith Lutheran Church
  • Flagstone Elementary future park site
  • Flagstone Elementary School
  • Gateway Mesa interior
  • Gateway Mesa Open Space
  • Gemstone Park
  • Matney Park
  • Memmen Ridge Open Space
  • Mesa Middle School
  • Metzler Ranch Park
  • Mitchell Gulch Park
  • Native Legend Trail (two sites)
  • Philip S. Miller Park
  • Plum Creek Park
  • Quarry Mesa Open Space
  • Red Hawk Ridge Golf Course (two sites)
  • Renaissance Magnet School
  • Rhyolite Regional Park
  • Sage Canyon Elementary School
  • Stewart Trail at Ridgeline Open Space
  • The Rock Church
  • Woodlands Bowl Open Space
  • Wrangler Park

Additional educational opportunities

The Town’s Natural Resource Specialist, Barbara Spagnuolo is available for educational presentations to schools, scout troops, volunteer groups and community organizations. Learn more about the program and how you can help bluebirds in Castle Rock.

2021 Volunteers

Thanks to the 126 volunteers mentioned below, who contributed over 2,000 hours to help with the program and increase our Bluebird and Tree Swallow populations in Castle Rock.

If you were a 2021 volunteer and are curious about the specific site you monitored, we can provide a site summary. Contact 720-733-2294 or email us for more information.

2021 Colorado Bluebird Project Volunteers

  • Alyson & Reese Plummer
  • Andi Johnston
  • Angela Thomas
  • Ann & Adrian Bolders
  • Art & Rhonda Morales
  • Austin & Bodhi Miller
  • Barbara Spagnuolo
  • Becky Newman
  • Bill & Quinten Schully
  • Bill Baird
  • Bob & Rose Legge
  • Bonnie Buchold
  • Brian Peterson
  • Bruce Ritchie
  • Caitlyn Pollack
  • Cathy & Tom Olson
  • Chris & Nancy Oberle
  • Christy, Ellia & Ian Fletcher
  • Cindy Malone
  • Cindy Shimpa
  • Clara Simon
  • Connor Jones
  • David Crabb
  • David Fogle
  • Deanna Schmidt
  • Deborah Davis-Merritt
  • Doris Rollins
  • Duane Walborn
  • Gary Walter
  • Heather, Wayne & Avery Lindsey
  • Helga Meyer 
  • James & Gloria Cavalier
  • Jammie, Carson & Connor Linn
  • Jared & Kylah Dierks
  • Jeff & Emma Sceili
  • Joel & Joni Anderson
  • Jon Greeneisen
  • Jonelle & Landon Albrecht
  • Julia Tarbet & Michelle Masten
  • Karen Foreman
  • Kathy O'Donnell
  • Kevin & Corinna Photos
  • Kim Malenoski
  • Kimber & Brooke Morgan
  • Kimberly Winder
  • Kira & Chloe James
  • Kristy Thompson
  • Laura & Scott Williamson
  • Lauren, Liam & Oliver Capper
  • Leslie & Jerry Hoggatt
  • Leslie Spencer
  • Linda Gould
  • Lori Paris
  • Maia Aman
  • Marcy Jones
  • Matt, Kristal & Kalena Javernick
  • Melissa & Sophia England
  • Michael Lyon
  • Michael, Kristine, Lucas & Logan Gauthier
  • Moira Malany
  • Nicole, Josh, Mason & Carter Dibble
  • Pat Caluori
  • Patricia Kraus
  • Peggy & Ralph Winn
  • Peggy Hupp
  • Randall Claypoole
  • Robert Sammel
  • Roger, Riley & Matthew Cayton
  • Roxann, Breanna, Bonnie & Matthew Hayes
  • Sarah Corliss
  • September & Ryan Michaud
  • Shannon & Tyler Jorgensen
  • Shaun Martin
  • Sierra Seleen
  • Stacy Wagner
  • Stephanie & Campbell Glavan
  • Tess Johnson
  • Tiffany & Harrison Reckseen
  • Todd Johnson
  • William Busby
  • Yolande Schmitz