I'm guessing on how long the power was out, it was to the entire house not just the incubator. I also don't tend to heat my house (live in S CA) so it's fairly cool. I turned on the heat yesterday then adjusted the incubator to keep the temp correct so between that and the blanket hopefully it will help. Unfortunately I work during the day so if the power goes out again there is nothing I can do about it.
I definitely have some blood rings :-( I don't know how many yet, I spent time looking at photos on the forum last night until was past bedtime so I'll candle all of them tonight. Of the 6 I spot checked 2 had them. I originally set 25, 2 look like they never started, 3 more look like they developed for a day or two then stopped. So even if I loose 30% of the rest I should still have about a dozen that keep going. Not great, but I'm a beginner at this so ...
I candled my eggs after posting this and it looked like ALL of them had blood rings. :-( They looked just like various posts on here and other spots on the WWW. But then I found a post on here that shows photos of each day of some chicken eggs incubating, and around day 3 or 4 (my duck eggs were on day 6 or 7) they had what also appeared to be blood rings and the poster said that was normal and those eggs went on to hatch. So I left mine alone. Candled them last night (day 10) and they are definitely developing, there are heart beats and movement. Some seem to be a little slower than others, a day or so behind, I'm not sure if the power outages just effected them a little more and slowed them down or ??? But I think most of them on are track to hatch
![Smile :) :)](/styles/byc-smilies/smile.png)
Turned out the electric company was doing work in the area and knew they were causing outages, would have been nice of them to let people know before hand that they were going to be doing that.
![he.gif](https://www.backyardchickens.com/styles/byc-smilies/he.gif)