Hi, my post was tagged in this thread. I think you've got your answer to the question.
@LynnaePB you sound pretty clued up on your silkie knowledge
In terms of the Siamese thing, I know the ebay advertisement for hatching eggs that you're referring to. Having been unable to see any mention on Siamese silkie's anywhere else, my own conclusion is someone is trying to sell poor genetics as rare.
My understanding, though I may be wrong - is there are large fowl and bantam silkie classifications in the UK.
http://thesilkieclubofgreatbritain.co.uk/the-british-standard/
That's the website I've used to gain info on the standards - though I'm not sure if it's completely legit as it's not listed on the great British poultry club website.
I have seen people advertise another miniature version that is supposedly smaller than a bantam. When I've contacted sellers to ask what the weight difference is, generally, between a bantam and a miniature- they either don't reply or come back and say they are a little smaller than a bantam. I think they have a smaller female, but still a bantam, that they sell hatching eggs from and try to advertise them as miniature.
The USA version is bred to be more puffy. It isn't recognised by poultry clubs yet, and I think it would be marked down in shows as it doesn't meet the current standards for silkies in the UK. This instagram account has some amazing USA Silkies. Sadly she is based in the netherlands and does not sell hatching eggs - I asked if I could buy a lot in the hope a couple might the trip across to the UK safely. I'm aware it was unlikely but I got super excited.
https://www.instagram.com/hadabonita_/?hl=en
I've bought hatching eggs from
https://www.facebook.com/Fylde-Fancy-Fowl-1729686153712547 they specialise in silkies and I found they seemed to be informed about breeding standards and their variations. They have recently started breeding some USA silkies. Below is a bantam silkie I hatched from them - non USA type. Her crest was looking particularly on point that day
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