Rank Animal Average mass [kg (lb)] Maximum mass [kg (lb)] Average total length [cm (ft)] 1 Ostrich 104 (230)[8] 156.8 (346)[8] 210 (6.9)[9] 2 Somali ostrich 90 (200)[8] 130 (287) 200 (6.6)[8] 3 Southern cassowary 45 (99)[8] 85 (190)[10] 155 (5.1)[8] 4 Northern cassowary 44 (97)[8] 75 (170)[8] 149 (4.9)[9] 5 Emu 33 (73)[8][11] 70 (150) 153 (5)[8] 6 Emperor penguin 31.5 (69)[9][12] 46 (100)[9] 114 (3.7)[9] 7 Greater rhea 23 (51)[11] 40 (88)[9] 134 (4.4)[8] 8 Dwarf cassowary 19.7 (43)[8] 34 (75)[8] 105 (3.4) 9 Lesser rhea 19.6 (43)[8] 28.6 (63)[8] 96 (3.2)[9] 10 King penguin 13.6 (30)[9][12] 20 (44)[13] 92 (3) 11 Domesticated turkey 13.5 (29.8) [14] 39 (86)[15] 100 - 124.9 (3.3 – 4.1) 12 Kori bustard 11.4 (25.1)[9] 20 (44.1) 150 (5)[9] 13 Great bustard 10.6 (23.4) 21 (46)[3] 115 (3.8) 14 Andean condor 8.1 - 14.9 (18-33)[16] 14.9 (33)[16] 100-130 (3.3-4.3)[16] 15 Dalmatian Pelican 7.25–15 (16.0–33.1) 15 (33.1) 183 (6)