I pick the black one too.
Just as a hint... to get that tag off without ripping their hair out, spray WD-40 underneath on the glue and slowly pull it off. It will come right off. The WD-40 will also help to get the glue off of their hair. I learned this trick from a guy who used to work at a cattle sale barn, the owner would buy cattle from other sales and it was his job to remove the old tags, clean the glue off and put on a new tag so they could be run through that sale without people knowing they just came from another.