Who Knew Local Backyard Squirrels Are Running A Secret City-Wide Acorn Reforestation Program?

Residents of a small coastal Oregon town recently uncovered a 7-year-old furry-led conservation initiative that no human non-profit, government agency, or volunteer group ever planned, funded, or coordinated.

Last month, Cape Meares town park rangers finished their annual post-wildfire native vegetation survey, running a high-resolution drone sweep across the 230-acre hillside that was scorched in a 2016 summer wildfire. The team had spent more than $120,000 over seven years on organized human tree-planting efforts, and their original projections estimated they had successfully established roughly 180 mature young oak trees across the steep, hard-to-access slopes. What the drone footage revealed left every member of the conservation team completely stunned: more than 1,270 healthy young oak saplings were scattered across the entire burn zone, growing in small clusters in spots so steep and rocky that no human volunteer could ever safely carry saplings, shovels or bags of soil to plant them. Rangers cross-checked records with every regional environmental group, local volunteer team, and nearby school district to find the mystery planter who had pulled off the massive unreported reforestation project, even posting a $500 community reward for anyone who could share details on who had done the work.

The mystery was solved 12 days later by 72-year-old retired local wildlife biologist Eleanor Hale, who had set up motion-activated trail cameras across the burn zone to try to catch a glimpse of the supposed anonymous human conservationist. Instead, hours of footage showed dozens of eastern gray squirrels scurrying up and down the slopes, carrying plump acorns in their mouths and burying them in small shallow holes under loose layers of fallen pine needles. Hale cross-referenced the squirrel population records for the town, and found the entire active squirrel colony on the hillside traces back to 17 pet squirrels that local families released into the woods back in 2014, after a local exotic pet store closed down. The squirrels have a well-documented habit of burying hundreds of acorns every fall to store for winter food, and they forget the location of roughly 30 percent of their hidden stashes, which then have the perfect conditions to sprout into new oak trees. The little creatures also intentionally choose open, sunny patches of ground away from thick underbrush to bury their nuts, which happens to be the exact growth condition native coastal oaks need to thrive, and they never bury stashes along the busy public hiking trails, leaving their accidental plantings undisturbed by human foot traffic.

Local city council members ran a full environmental impact report earlier this month to calculate the total value of the squirrel-led reforestation work, and the final numbers shocked every town official. The 1,270 young oak trees already sequester more than 3.2 tons of carbon every year, far outpacing the carbon capture from all the trees humans manually planted over the same seven year period. The dense root systems of the new oaks have also completely stopped the annual mudslides that used to pour down the steep hillside onto the town’s main residential street every rainy winter, eliminating the need for a planned $210,000 public works project to install concrete slope stabilization barriers across the burn zone. The new oak canopy has also drawn 22 species of native songbirds back to the area that had completely left the town after the 2016 wildfire, boosting local birdwatching tourism revenue by an estimated 18 percent so far this year. Neighboring coastal towns have already reached out to Cape Meares’ conservation team to ask for guidance on adapting the low-cost, wildlife-led reforestation model for their own local burn zones and eroding slopes.

Residents of the town have already launched a informal community “Squirrel Steward Pact” to support the accidental reforestation crew, agreeing not to dig up hidden acorn stashes for personal use, and leaving small piles of unsalted native nuts at the edge of the woods in late winter when natural food supplies run low for the squirrel population. The local elementary school has added the town’s squirrel reforestation story to its third grade natural science curriculum, teaching kids that meaningful environmental action does not always require huge budgets, complicated policy changes or large organized campaigns. The town council even voted unanimously earlier this month to award the entire local squirrel colony the first ever non-human recipient of the town’s Annual Community Contribution Award, a recognition that the busy little creatures are completely unaware of as they continue darting across backyards, burying acorns, and building the town’s new coastal forest one forgotten stash at a time.