Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 46.5, 53.5, 493, 148, 318, 419, 35.0, Leptotila verreauxi, 45.4, 54.6, 483, 143, 342, 410, 8.6, Streptopelia chinensis, 46.3, 53.7, 489, 149, 330, 410, 9.8,