Sexing chicks by headspot size

The Prairie

Chirping
Oct 14, 2018
99
81
78
Hatched a group of mixed flock eggs under my broody. Most if not all were her own eggs and she's a Olive Egger from CCLxMarans crossing and I have 4 roosters (Lead is a Red Barred RIRxCCL, a mostly CCL, a Dominant White Favorelle mix and a Barred Rock that's new and not likely breeding anyone) The chicks have hatched 4 blacks two with large hourglass head spots two with fainter headspots, 2 creamy with light headspots, a light chocolatey with a faint head spot, a dark chocolate with a large head spot and a chipmunk with no headspot. I know these crosses aren't sexlinked but can I assume the larger headspots are likely cockerels based on being likely double barred? Pics of Momma, chicks and roosters. Dont mind the blue-lavendar chick, she's from another group of course
 

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NatJ

Free Ranging
Mar 20, 2017
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I know these crosses aren't sexlinked but can I assume the larger headspots are likely cockerels based on being likely double barred?

Maybe?

I agree that any double barred birds must be male, but I don't know if there are any other genes that might affect headspot size too. :idunno
 

The Prairie

Chirping
Oct 14, 2018
99
81
78
So you're sayin there's a chance? Lol Yeah guess we'll see! I've had single barred birds with no headspot and double barred that you couldn't tell had a headspot (lightly colored chick down) so we'll have to wait and see. Hope they're not all roos 🤷‍♀️
 

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