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.
Two species of kites are also residents of the state. Swallow-tailed kites and Mississippi kites have long pointed wings and fly very gracefully. The Osprey and the American bald eagle are two of the largest raptors native to Georgia. Both of these raptors are fishing birds that feed primarily on live fish.