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 State Bird Facts The yellowhammer is Alabama's state bird, a bird more commonly known as the northern flicker or the yellow-shafted flicker outside of the southern states in the U.S. The flicker is a member of the woodpecker family, and is the only one of these birds that commonly feeds on the ground rather than in trees. The flicker was designated as Alabama's state bird in 1927, and to this day Alabama is the lone state in the Union that has a woodpecker as its state bird. Description The northern flicker is a distinctive bird and rather large, reaching a maximum length of 14 inches and having a wingspan that can be as wide as 22 inches.