Nemo and I have been together for nine years. A long time--especially in parakeet years. So you can imagine my surprise when her new veterinarian Dr. M. Scott Echols immediately recognized and recorded her special super power: http://www.youtube.com/watch?v=g9FrtZtR4-E Dr. Echols explained that some budgies--particularly in wild populations--fluoresce under UV light. As he describes in the video, this energetically costly characteristic may help with individual identification, social signaling, and mate selection.