Sexing chipmunk pattern chicks

[McChooky]

All 3 females my broody hatched in August had solid unbroken dark brown v shaped stripe starting on top of the head and going all the way down the back.

The males stripe varied in width and was 2 shades of brown
View attachment 4229877

 

[McChooky]

4 brown leghorn/legbar crosses and 1 welsummer/ legbar cross

 

[McChooky]

It doesn't work with all the breeds.
This chipmunk chick (golden salmon marans) is turning out to be a pretty and very obvious little boy, although the stripes at birth clearly indicated female...in theory only :
View attachment 1861781
The eyeliner was nice and dark and well defined too.

So depending on what breed you have, don't rely on pattern to sex young chicks.

The stripe has to be v shaped on top of the head.This one has a dark stripe but it doesn't look like its v shaped on top of the head

Could this chick be sexed? Light Sussex x blue partridge cross. View attachment 4229877View attachment 4229878

My 2 males had a single stripe multiple shades of brown on their head and neck.What breed is this chick? Its adorable!