Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 48.2, 51.8, 496, 251, 399, 405, 35.0, Leptotila verreauxi, 48.4, 51.6, 498, 252, 399, 402, 8.6, Streptopelia chinensis, 48.2, 51.8, 500, 247, 398, 406, 9.8,