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.
Barn swallows, mourning doves, cardinals and blue jays will also use nesting platforms too. The American Robin is the State Bird of three U.S. States: For more information about the American Robin, go to Connecticut State Bird, Michigan State Bird and Wisconsin State Bird.