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.
The wild turkey (Meleagris gallopavo) was adopted as Alabama official state game bird by Act No. 80-734 of the Alabama Legislature, effective September 6, 1980. The wild turkey is one of the most common game birds in the United States.