I actually do not know. I'm not aware of a production blue bird with silver rather than red leakage. I bet it's an unnamed hybrid or one that I can't find online. I saw a label on here from TSC called Blue Legged Beauties that have absolutely no information online and are also labeled "premium." Couldn't tell you where they're sourced from but I wonder if these are a similar mix that has no information.Really not the color I was expecting lol! @Rhodebar Lover what do you think? Funky Marans or Lorp?