Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 45.9, 54.1, 626, 207, 417, 565, 35.0, Leptotila verreauxi, 46.4, 53.6, 640, 203, 413, 562, 8.6, Streptopelia chinensis, 46.3, 53.7, 634, 208, 413, 563, 9.8,