Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 48.5, 51.5, 410, 144, 281, 308, 35.0, Leptotila verreauxi, 48.6, 51.4, 417, 139, 275, 312, 8.6, Streptopelia chinensis, 48.3, 51.7, 408, 144, 282, 309, 9.8,