Cinnamons are color and pattern morphs. They are darker (typically) and they have that floating pattern. Their heads are a dead give away. The pretty much have no pattern on their head and it's a weird cinnamon brown color (hence the name).
My cinny, she's really dark even for a cinnamon
Her head, this should be the first thing you look for if you are questioning the pattern.
Here's with a ton of flash, right after she laid this spring. You can see they don't have much of a pattern anywhere on their heads.
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