Excellent article, and very timely for us! As I understand the article, a heating element was still used in the run while the chicks were young. The term was a "heating pad cave". What exactly was that? Is it the blue and white thing in the picture? If so, was that an actual heating pad used that was draped over a box frame that was open on one side for the chicks to walk in? It also looked pretty short, as if the chicks would actually be touching the heating pad when in the "cave".