Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 46.3, 53.7, 120, 43, 94, 95, 35.0, Leptotila verreauxi, 48.1, 51.9, 128, 41, 90, 92, 8.6, Streptopelia chinensis, 46.6, 53.4, 120, 44, 98, 90, 9.8,