Wow, so pretty...=o
Once, when I was in middle school, I was walking to school, and I found, in the grass, a little starling. It was winter, and the dew on the grass had frozen, and it was very cold. This poor little starling had frost and ice all over his back and wings, and didn't even move when I walked by him. I picked him up and kept him in my pocket for about ten minutes, as I walked, and then he started struggling, so I lifted him out of my pocket, and he flew away. =) I felt so happy that I might have saved his life, since there were (and still are!) SO many feral cats in that area...Thankfully, I didn't catch any zoonotic diseases from it, and I hope he lived a long healthy life.
I'm really glad that your little cardinal was okay and got to fly away safely. =)