Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 41.8, 58.2, 472, 220, 454, 511, 35.0, Streptopelia chinensis, 42.7, 57.3, 403, 207, 413, 404, 9.8,