Open Space and Mountain Parks to extend raptor closure on Third Flatiron past Aug. 1

Department anticipates lifting all other closures protecting cliff-nesting bird habitat on or before Wednesday, Aug. 1

The City of Boulder’s Open Space and Mountain Parks (OSMP) Department will extend a seasonal wildlife closure that is protecting a pair of peregrine falcons nesting on the Third Flatiron beyond the normal lifting date, Wednesday, Aug. 1.

An Open Space and Mountain Parks volunteer raptor monitor recently discovered that an injured female peregrine falcon on the Third Flatiron was displaced by another female – which led to a delayed but successful courtship cycle between the resident male peregrine falcon and the new female. While peregrine fledglings normally leave their nests in late July, OSMP anticipates that two peregrine falcon nestlings will need additional time to mature and is extending an existing wildlife closure to protect them from disturbance.

OSMP staff and volunteers will continue to monitor this nest and will lift the closure when the fledglings are able to leave the nest area. OSMP anticipates the Third Flatiron raptor closure could remain in place until Aug. 15.

OSMP recognizes this closure extension will impact climbers’ access to the Third Flatiron and encourages them to visit bit.ly/osmpclimbing for updates on when the closure will be lifted. Information on OSMP wildlife closures, which help to protect sensitive habitats, can be viewed at www.osmpwildlifeclosures.org.

OSMP anticipates lifting the following cliff-nesting raptor closures on or before Aug. 1:

  • Flagstaff Mountain, the north side of Flagstaff Mountain.
  • The Back Porch and The Box.
  • Fern Canyon, north of the Fern Canyon Trail, including the Nebel Horn Ridge, East Ridge, the Goose and the Goose Eggs.
  • Shadow Canyon, the Matron and The Wings. The Maiden remains open and accessible from the east.
  • The entire Mickey Mouse wall, including South Tower, North Tower, Central Tower, Ship’s Prow, Wall of Shiva’s Dance, The Gargoyle, the East Face and Cryptic Crags.
  • Lefthand Canyon Palisades, at the intersection of Lefthand Canyon Drive and Olde Stage Road. The Buckingham Picnic area remains open.

All designated OSMP trails have remained open in these areas while these seasonal wildlife protection closures have been in place. These closures protect some of the most productive raptor habitat in Colorado. In 2017, raptors nesting on city open space raised seven peregrine falcons, three prairie falcons, one golden eagle and two bald eagle fledglings. OSMP anticipates that the number of raptor fledglings for 2018 will be available to report in early August.

For more information about OSMP’s raptor closures, please visit http://bit.ly/raptorclosures or call the department at 303-441-3440.


Content is the most important part of having quality links to your website. With Area-Info.net, we provide a quality location to share your story and include links to your website to help you grow. If you would like to learn more, visit this page to see how you can use Area-Info.net to rank higher and quicker in search engines. Contact me directly at [email protected] with any questions, or to schedule speaking engagements.

You May Also Like