Species, GC (%), AT (%), G (bases), C (bases), A (bases), T (bases), Maximum lifespan (yrs) Arenaria interpres, 46.6, 53.4, 239, 126, 200, 219, 22.3, Chroicocephalus ridibundus, 46.4, 53.6, 234, 130, 200, 220, 32.9, Recurvirostra avosetta, 46.8, 53.2, 249, 118, 185, 232, 27.8, Scolopax rusticola, 44.3, 55.7, 224, 123, 211, 226, 15.5, Stercorarius maccormicki, 45.4, 54.6, 240, 116, 196, 232, 23.5, Vanellus vanellus, 46.6, 53.4, 246, 119, 195, 224, 24.5,