Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 44.5, 55.5, 404, 301, 347, 534, 35.0, Leptotila verreauxi, 45.5, 54.5, 429, 293, 333, 532, 8.6, Streptopelia chinensis, 45.1, 54.9, 422, 297, 335, 540, 9.8,