The head looks like a pullet (like you said) but those long legs say "rooster". Our original flock of six included six different breeds. One silver-laced Wyandotte was the meanest little chick I'd ever encountered. She nearly killed our sweet Buff Orpington. I wrote a story about her for the local newspaper. It's on my websites below and called "A Problem Chick".
By the way, she settled down a bit when she began laying and turned out to be a "good girl" (but never tame). It will be interesting to see how yours turns out.
By the way, she settled down a bit when she began laying and turned out to be a "good girl" (but never tame). It will be interesting to see how yours turns out.