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I agree that chipmunk chick shouldn't kneejerk = EE (since dozens of breeds start as chipmunk pattern).
But, green legs = EE shouldn't be kneejerk either, for the same reasons. Additionally, you can really throw the green= EE out the window if any crossing of a white legged breed happens with a yellow legged breed. That genetic combination results in green legs, no matter what breeds you are mixing (for example, a RIR and a BR could create green-legged offspring). There is NO smoking gun for EE, and people do tend to mislable chicks because it's the easiest kneejerk answer.
I would say that Donald appears to be a white Brahma/EE cross (omg please post pics as he grows!)
Daisy is definitely a Wyandotte cross of some sort. Considering that Donald is half EE, it wouldn't be a stretch to have Daisy be half EE too.
Please please PLEASE post pictures of them as they grow. It'll be so exciting to see how they turn out!
What in the world? Where did you here "White + Yelow=Green"? The truth is, White legs (W+) is dominant to Yellow legs (w), so the offspring would have White legs and skin. I have no idea where you got green from? 0.o
Furthermore, RIR and BR both have Yellow Legs, so the offspring will have yellow legs
There is an alternate gene that affects the top layer of scales on chicken legs. This can cause pinkness on white legged birds, or your typical Slate color. That said, Green legs is a result of crossing a Yellow skinned bird to a bird with Slate colors legs. The yellow interferes with the slate, giving a willow colored Appearence
Or if you want to go complicated, read this paragraph from Krys109uk;
"Then there is the sex linked inhibitor of dermal melanin gene (Id) which inhibits pigment from the dermal layer of skin & its recessive allele (id+), which allows pigment to be laid down in the dermal layer of skin. Id & W+ will give white (or pink) legged birds, Id & w will give yellow legged birds. id+ & W+ will give slate legs with white soles, id+ & w will give willow legs with yellow soles. "
Thank you for posting that, I got my colors all mixed up! Good thing I'm not expected to do genetics at work
. However, the basic principal of what I was saying still stands: Green legs do not automatically = EE. It's a very common assumption that can lead to mis-identification. Lots of breeds have colored legs. And lots of crosses, as you've pointed out, can result in different colors in different layers of skin.
Good information, thanks again!