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.
Alabama is a southeastern state which is north of the state of Florida. It's known for its warm climate. Due to its historical reliance on cotton as a crop, Alabama is nicknamed the 'Cotton State.' Answer and Explanation: The state bird of Alabama is the northern flicker, which was selected in 1927. It's commonly called the 'yellowhammer.' The bird is so popular that one of Alabama's nicknames is the 'Yellowhammer State.' The scientific name for the northern flicker is Colaptes auratus. The yellow-shafted variety is the one that is commonly recognized as the Alabama state bird. Northern flickers are actually a type of woodpecker. They're large, brown birds with a slightly curved bill that they use for digging up ants and beetles out of the ground. Alabama also selected the wild turkey as their 'state game bird' in 1980.