Cold agglutinin disease. Cold agglutination - at body temperature, the antibodies do not attach to the red blood cells. At lower temperatures, however, the antibodies react to Ii antigens, bringing the red blood cells together, a process known as agglutination.
American Robin (Turdus migratorius). The robin red breast was designated as the state bird of Michigan by House Concurrent Resolution No. 30, the Senate concurring, on April 8, 1931.
Indiana State Bird-Cardinal-Cardinalis cardinalis. The cardinal was adopted as the state bird of Indiana by an act of the Indiana General Assembly on March 2, 1933. Six other states also have the cardinal as their state bird: Illinois, Kentucky, North Carolina, Ohio, Virginia, and West Virginia.