Fuller said the owlets, who were named because of the storm that was raging overhead while they were hatching, had begun getting ready to leave the nest.
He said a natural part of that was the owlets falling to the ground as they developed their flying skills.
“They look like a cuddly toy and look like they should not be out there, but they can actually climb up a vertical tree trunk,” he said.
He advised anyone who spotted an owlet on the ground not to interfere, unless they appear injured or are near a road.
“Most of the time it’s perfectly natural and they should be left where they are,” he said.