How common are blood rings?

[Susan Skylark]

I know blood rings are a sign your embryo has died but just how common are they (what percentage of early embryonic deaths actually show one)? I’ve only seen one (but then again I have quail so could just be hard to see). So I’d guess about 1-5% of eggs with a dead embryo in the first half of incubation actually show one, at least in quail, maybe they are more frequently seen in other species? What is your experience? Thanks!

 

[Cheekychook12]

I’ve incubated 38 eggs and only seen one blood ring (chickens)
If that helps

 

[JacinLarkwell]

I see a lot, but I also candle a lot

 

[FuzzyDinoNuggets]

I’ve never seen one, I’ve incubated 50 eggs (some chicken and some quail)

 

[Susan Skylark]

I candle obsessively and have hatched around 100 eggs, have probably had 25-30 early embryonic deaths (most of those in my last 2 hatches of shipped eggs and an faulty autoturner) and have only seen it once.