HINTS (in case of frustration!):

Checkpoint A

You're looking IN the flower garden that has the fence that's behind the tree next to the house (current education center)

Checkpoint B

You're looking low to the ground on a traffic sign at the wildlife habitat.

Checkpoint C

There are two benches in the bird watching area, the clue is attached to the back of the bench closest to the training/nature building.

Checkpoint D

The fence around the house forms a 90 angle near the barn at the left edge of the open field.  The clue is on the inside corner near the gate.

Still stumped?  We do not aim to cause any more stress than there already is in 2020!  Text Lauren Manfreda 919-368-7297