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.
Official State Bird of Michigan. Michigan designated robin redbreast (American robin) as the official state bird in 1931 after an election held by the Michigan Audubon Society. All state birds. The legislation noted that the robin redbreast is the best known and best loved of all the birds in the state of Michigan. The American robin (Turdus migratorius) is also the state bird of Connecticut and Wisconsin. Robin Facts