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.
Current: Indiana State Bird Indiana State Bird. Indiana Code: IC 1-2-8-1. Sec. 1. The bird commonly known as the Red Bird or Cardinal (Richmondena Cardinalis Cardinalis) is hereby adopted and designated as the official state bird of the state of Indiana. (Formerly: Acts 1933, c.223, s.1.) The cardinal (Richmondena cardinalis cardinalis) was adopted as the state bird by the 1933 General Assembly (Indiana Code 1-2-8). The male (shown above) is bright red; the female is brown with dull red crest, wings and tail. They remain in Indiana year round and nest in thickets of brambles or low saplings.