Beautiful bird, calm, non-aggressive

Silver is my new Silver Laced Wyandotte and I got her for free from an old family friend of ours who had two hens and one died, and she thought silver would be happier with the companionship of my younger pullets. She is about 6 years old and they are about 3 1/2 months. I let them in the yard together and they all took turns coming up and getting aquainted. I seperated Silver off with a bit of chicken wire when I put them back in the run for a while. That evening all seemed okay so we took down the seperator and let her in with the others and she did fine. I was amazed at how calm she was, and that night she went into the coop with my other girls and was totally fine. She is an older bird, and her laying is starting to decline, but her previous owner says she does still get eggs from her so I will be excited when she settles in enough to lay one. She is a beautiful addition to my already colorful flock! She is big too, with a fat feathery backside, she's so funny when she gallops across the yard.