This image was published on the photo blog of Takashi Morizumi. It appears Dr. Satoshi Mori was responsible for the x-ray-like view showing black dots spread throughout the body of a small bird from Iitate Village. The dots are said to be radioactive particles of Cs-137 internalized by eating contaminated insects.
“Takashi Morizumi is a photojournalist who covers topics in Japan and overseas such as the effects of US military bases and environmental problems. In particular, since the later half of the 90s, he has covered the damages caused by nuclear mining, testing, power plants, and the use of depleteted uranium and other nuclear weapons.” -Source
h/t Fukushima Diary