Workers digging into some delivered soil at the American Bald Eagle Foundation this week at first thought they’d found a coconut shell.

Then someone guessed it was a clay bowl. Foundation raptor curator Chloe Goodson joked that it might be a skull.

That’s exactly what it turned out to be.

Goodson, intern Maggie Hughes and raptor handler Samantha Wilson were shoveling a freshly-delivered pile of soil for construction of a new aviary on Monday when…