lucas – Sep 18, 2001 12:00 AM

Isolated wolves behind temporary fence for the construction project each day (9/18, 9/19, 9/20), wolves were kept out overnight with no signs of digging to get back into main enclosure, but on the 20th, when the wolves were returned to the front of the enclosure for the weekend, they began digging at the fresh dirt near the electrical boxes. Wolf care staff hauled several cubic yards of rocks to protect the electrical boxes.