Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Columba livia, 46.7, 53.3, 3903, 1408, 2723, 3332, 35.0, Leptotila verreauxi, 46.7, 53.3, 3909, 1399, 2743, 3316, 8.6, Streptopelia chinensis, 46.7, 53.3, 3904, 1401, 2722, 3341, 9.8,