I've seen it expressed as "randomness is clumpy."
If something is really random (like flipping a coin or gender of chicks) you will sometimes get clumps of just one or just the other.
If you're bored and want to test it, you can literally flip a coin a bunch of times and make a note of what you...
In ducks, chickens, and other birds it is the female that determines the sex of the offspring.
You are right that in humans it's the male that determines the sex of the offspring.
In case anyone's interested in more details:
https://en.wikipedia.org/wiki/ZW_sex-determination_system
(used by...
Yes, it probably is fertilized.
(I'm basing this mostly on my knowledge of chickens, which are of course similar but not quite the same.)
First, there is no guarantee that she will go broody at all. Some do, some don't.
I don't know enough about ducks to be entirely sure what triggers...