10:05 Kaia gets up again.
She cleans the chicks.
The difference in size between the chicks is significant.
And we know the difference will most probably increase in the next weeks.
The youngest chicks will presumably only catch up with the oldest two once the older ones stop growing that fast.
But as long as there is enough food for everyone, it is not a big problem, I think.

10:07 ps by Kaia
Kaia preens herself
Today, the chicks are 7 - 7 - 5 - 3 days old.
The 2nd chick is 15 hours younger than the 1st.
The 3rd chick is 52 hours younger than the 2nd.
The 4th chick is 32 hours younger than the 3rd.
(approximate)