where did you get yours from? soo cute!
I have 2 favs, one hatched completely yellow and the other hatched with black chipmunk stripes (although not as defined as yours). the one with black stripes turned out to be a girl, the yellow one a boy!
you can't go off their down color at hatch. you can only go on the wing feathers as they fill in. I was making guesses at 1 week old, but by 2 weeks I knew for sure.
here are pics of my male and female sexing: https://www.backyardchickens.com/t/268082/faverolles-thread/14430#post_12893484
Thank you Viola ... My chickens were bought here in Costa Rica, no special breeder, but I'm assuming they are Faverolle mixes, - they don't have the 5th toe but have muffs, beard and foot feathers. These chicks hatched from the eggs from my chickens, - I just let a broody hen sit on about 6 eggs. One egg was bad and the hen is young so she sat on the first chick just at it had hatched - (it didn't make it - it was a black like the brood hen). But she seems pretty good now, so maybe there's a chance the rest will make it.
I was surprised to hear that the "chipmunk" color might be a girl. I will keep my eye on them and see how their feathers develop. I'll let you know. Thanks for responding.
- Donna