Posts tagged Superior Associates
City of Boulder begins seasonal grassland raptor closures
Mar 12th
The City of Boulder Open Space and Mountain Parks (OSMP) is temporarily closing areas in order to protect nesting and roosting burrowing owls and osprey. Properties where burrowing owls nest will be closed from March 15 through Oct 31. Properties closed for the protection of nesting osprey will be closed from March 15 through Sept. 10. Closures may be lifted early if monitoring indicates it is appropriate.
The following property will be closed for the protection of osprey:
Axelson (northwest of Boulder Reservoir; portions closed).
The following properties will be closed for the protection of burrowing owls:
- Damyanovich/Yunker (north of Marshall Drive, between Cherryvale Road and US 36);
- Jafay/Lynch (north of Lookout Road and east of 75th Street);
- Cosslett/Knaus (South of Lookout Road and east of 75th Street);
- Kelsall (north of High-Plains Trail, trail remains open);
- Mesa Sand and Gravel (east of 66th Street, south of Marshall Drive); and
- Superior Associates (north of High-Plains Trail, trail remains open).
These closures were established to protect sensitive species. Burrowing owls nest in prairie dog burrows and their populations are declining in Colorado. This bird is listed as threatened by the Colorado Division of Wildlife has been listed as endangered or as a species of “special concern” in 12 US states and in Canada. Staff will be monitoring these sites and others during the spring and summer to understand more about the distribution and breeding biology of this owl on city property.
City of Boulder relies heavily on the public to respect the closures, and the cooperation of visitors to avoid these areas is greatly appreciated. Trespass violations can result in a summons with penalties up to 90 days in jail and/or a $1,000 fine.
More detailed information and maps can be found on the Open Space and Mountain Parks’ website: www.osmp.org. or call 303-441-3440.
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City to lift some seasonal raptor closures early
Jul 20th
The City of Boulder Open Space and Mountain Parks (OSMP) department will lift the following raptor closures effective Monday, July 23: Third Flatiron, The Matron, Skunk Canyon, Bear Creek Spire, Flagstaff Mountain, Fern Canyon, and The Sphinx.
The following closures will remain in effect through Tuesday, July 31, to continue to protect nesting raptors: Back Porch and The Box, Mickey Mouse Wall, Kolb, and Coal Creek. OSMP will also be lifting seasonal closures established to protect ground-nesting birds on the originally scheduled date of Tuesday, July 31. However, the property known as Superior Associates—north of the Coalton Trail—will remain closed through Oct. 31 because of the presence of nesting burrowing owls.
This year marked another successful season for raptors nesting on OSMP. Below is a table detailing what OSMP staff and volunteers recorded this season:
| Species | Number of Nesting Attempts | Number of Successful Nesting Attempts | Number of Fledglings |
| Peregrine Falcon | 4 | 4 | 12 |
| Prairie Falcon | 4 | 4 | 17 |
| Golden Eagle | 4 | 2 | 3 |
| Bald Eagle | 2 | 2 | 3 |
This year was the most productive year for Peregrine Falcons since OSMP monitoring began in 1984. Volunteer raptor monitors are an integral part of the success of the monitoring program. Thank you to all the volunteer raptor monitors!
OSMP relies heavily on the public to respect the closures and the cooperation of visitors to these areas is greatly appreciated. OSMP would specifically like to highlight the cooperation among the Boulder climbing community with respect to these closures.
