As additional sections were examined, Castro discovered that the acorns had accumulated through the cavities and reportedly reached toward the attic.
That detail transformed the story.
This wasn't something that had happened during a handful of visits.
The woodpecker had apparently returned again and again, repeatedly depositing food into the house.
Each individual trip probably seemed insignificant.
One bird carrying one acorn doesn't look capable of creating a major structural headache.
But repetition changes everything.
A single acorn becomes ten.
Ten become a hundred.
Hundreds become thousands.
And when the food continues dropping into spaces where it can't easily be seen—or retrieved—the accumulation can continue without anyone realizing what is happening.
For the homeowner, the evidence outside the house offered only a small clue.
Behind the siding was the real story.
Nearly 700 Pounds of Acorns Were Removed
Eventually, the amount removed from the property was estimated at roughly 700 pounds of acorns.
That number is what turned an already strange pest-control story into something almost difficult to imagine.
Seven hundred pounds is far beyond the amount most people would associate with a single bird's food-storage behavior.
According to accounts of the discovery, the enormous collection was enough to fill around eight large trash bags.
For Castro, it was unlike anything he had encountered during more than two decades in pest control.
That experience mattered.
Professionals in his field routinely see things hidden from ordinary homeowners: nests in attics, insects inside walls, rodents using crawl spaces, animals finding their way into chimneys, and all sorts of unexpected activity around buildings.
Yet a wall filled with hundreds of pounds of acorns was something different.
The house hadn't merely attracted an animal.
Part of it had inadvertently become an enormous pantry.
How Could One Bird Store So Much?
At first glance, the obvious question is how a woodpecker could possibly accumulate such an enormous amount of food.
The answer lies in persistence and the unusual structure of the storage location.
The bird was reportedly collecting acorns and placing them into holes in the exterior siding.
Under more natural circumstances, food stored in a suitable cavity would remain close enough for the bird to retrieve later.
But a house isn't a tree.
Once an acorn entered certain openings, it could drop down into the hollow wall cavity instead of staying near the entrance.
That meant the storage space effectively had far more capacity than the bird may have expected.
The woodpecker could insert an acorn, watch it disappear, and then return with another.
If the nut fell out of reach, there was still room for the next one.
And because the interior cavity wasn't visible from outside, the homeowner couldn't easily see the growing pile either.
This could continue repeatedly.
Day after day, trip after trip, the bird's tiny contributions accumulated.
Eventually, the house contained hundreds of pounds of food.
The Woodpecker Had Accidentally Created an Inaccessible Pantry
There is an almost comical—and slightly unfortunate—side to the situation when viewed from the bird's perspective.
The woodpecker was doing exactly what its instincts told it to do.
It was gathering food and attempting to preserve it for later.
Each acorn required effort.