Video by H.Koenig
Nothing thermal here. Just found the behaviors of this mob of at least 18 juvenile kea to be interesting and entertaining.
Behind the building, someone left scraps of what appeared to be potatoes, carrots or kumara, which may be what attracted them. For reasons of their own, they returned to this building the next morning.
Despite the wide open doors and windows, never saw any of them enter the building.
Their habit of prying at the nails in the roofs in this area is a problem, because most of these buildings are a century old, dating back to when the Otira Tunnel (8.5km long) was being built. (It opened in 1923.) Roofing materials, including nail heads, contained lead back then, and some kea have shown signs of lead poisoning.