Greenwood Wildlife Rehabilitation Center

A nonprofit organization

This Colorado Gives Day, Greenwood hopes to raise funds for the thousands of wild animals we care for each year.  In 2022, that number was nearly 5,000. Help us continue to do what's best for the animals by scheduling your gift on Colorado Gives Day, December 5th. 


The mission of Greenwood since its inception in 1982 has been two-fold: rehabilitation of wildlife, including the treatment and release of sick or injured wildlife and orphaned or abandoned baby animals, and education of the public to prevent or minimize human-wildlife interactions and provide humane solutions when such encounters occur.

Background Statement

Founded in 1982, Greenwood Wildlife Rehabilitation Center was initially a small, one-room offshoot of the Humane Society of Boulder Valley (HSBV). One year later, the family and friends of Natalie Gneiser-a young woman who was killed while trying to rescue an injured dog on the highway-donated memorial funds to this cause, allowing the center to expand to help more patients.

During the next 14 years, the number of animals brought to the center for care increased by 20-30% each year. Meanwhile, as Boulder grew, ensuring a quiet and secure environment for wild animals to recover became increasingly difficult.

In March 1993, the Center incorporated due to its continuous growth and was named Greenwood Wildlife Rehabilitation Sanctuary (officially renamed "Center" in 2008). "Greenwood" was the name of the Center's first rehabilitated raccoon, which had been burned in a chimney fire. At the time of incorporation, Greenwood was operating out of a veterinarian's office in north Longmont.

In 1997, Greenwood secured a lease from Boulder County for the property on Highway 66 between Longmont and Lyons. For the next 10 years, it operated out of two modular units on this site. Caging was built for raccoons, songbirds, squirrels, rabbits, coyotes, and foxes. In 2007, the Center received a contribution to purchase the previously leased property plus an additional 1.5 acres. Another large contribution provided funds to help build a new, state-of-the-art facility, with donations coming from many other supporters. Greenwood moved into this building in early 2009.

Fundraising efforts and the annual budget continued to increase with the addition of a Thrift Shop in 2004 and an annual major event, Wild Night for Wildlife, in 2009. In 2012, Greenwood relocated the Thrift Shop and expanded its retail efforts to include a Consignment Gallery, the only nonprofit store of its kind in Boulder County. Education and Outreach programs, the other important component of Greenwood's mission, have consistently grown as well.

We've continued to expand our facility by building a waterfowl enclosure in 2017. We added a new crow aviary and finished renovations to our existing fox enclosure in 2019. These improvements allow us to care for more orphans and treat them for longer periods of time instead of transferring them at an early age to other rehabilitators.

An important component of our mission is education and outreach, teaching about the importance of protecting Colorado's natural fauna as well as finding humane solutions to human-wildlife conflicts. Greenwood's community outreach programs have been growing steadily and have readily adapted to the recent push toward virtual media.

Since its inception, over 200 different species have been rehabilitated at Greenwood. With only a small year-round staff, the majority of personnel needed to operate the Center include the volunteers, interns, and seasonal employees who work diligently from March through October caring for up to 500 animals each day. Greenwood currently has 16 rehabilitators licensed by Colorado Parks and Wildlife, and our success rate remains high as we all work together. As the only Rehabilitation Center of its kind providing care for a wide variety of species from north of Pueblo to the Wyoming border, Greenwood provides leadership to the wildlife rehabilitation community throughout Colorado and the nation.

Organization Data


Organization name

Greenwood Wildlife Rehabilitation Center

Year Established


Tax id (EIN)




Organization Size

Large Organization


PO Box 18987
Boulder, CO 80308

Service areas

Boulder County, CO, US



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