Our present dog is a Blue Merle Corgi: These two photos are the closest to what she looks like.

You get them from breeding black and white Corgis. They are rare sort of like Redheads in Human beings.

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Where do the “Blue Merle Pembrokes” come From? – Blue Merle ...

Blue Merle Pembroke Welsh Corgis - WordPress.com

 

Blue Merle Corgis: Everything You Need To Know

Stumps and Rumps

Colors of the Cardigan Welsh Corgi – The Cardigan Welsh ...

The Cardigan Welsh Corgi Club of America