I recently just built a new pen and run for my chickens and when I built it I specifically kept in mind keeping everything out and keeping them in. Well the last couple of days iv'e gone out there to feed and stuff I have noticed they have always been gathered at the back especially the two girls AND they have been digging holes but as soon as they see me they walk away and act as casual as possible! Am I losing my mind or are my chickens planning a escape???