Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 45.9, 54.1, 5496, 2408, 4131, 5194, 35.0, Leptotila verreauxi, 45.9, 54.1, 5499, 2384, 4127, 5166, 8.6, Streptopelia chinensis, 46.0, 54.0, 5439, 2364, 4058, 5105, 9.8,