Point one: it is unseasonably chilly here.
Point two: the old house does not have central heating and air.
Point three: the incubator and brooder are in the back bedroom, closed off from the main space heated/cooled by ductless unit.
Point four: when I entered the kitchen to make my tea this morning, the oven clock blinking alerted me there had been a power outage while I slept. I have no way of knowing how long the power was out.
Point five: getting chilled is one of the most dangerous things that can happen to a baby keet so young.
Point six: I realized I had not heard peeping from the other room while waking up.
HAPPY OUTCOME: all the keets are fine, and seem comfortable and unstressed. So I suspect the outage was brief.