Table 1.

Absent of MBM indicates that species with no SSD or RSSD. FBM: female body mass (kg), MBM: male body mass (kg), and ESR: egg size ratio (egg mass divided by average body mass). ^a cassowary, ^b emu, ^c kiwi bird, ^d ostrich, ^e rhea, ^f elephant bird, ^g moa.

Species	Egg Length, B (mm)	Egg Width, A (mm)	Shell Thickness, t (mm)	Egg Mass, W (g)	Body Mass, M (kg)				ESR	Ref.
					FBM (Max.)	FBM (Min.)	MBM (Max.)	MBM (Min.)
1 Struthio camelus d	158	131	1.92	1600	85	63	130	80	1.79%	[3,12]
2 Rhea americana e	128	86	0.9	525	40	20			1.75%	[3,28]
3 Rhea pennata e	126	92	0.86	584	25	15			2.92%	[22,28]
4 Dromaius novaehollandiae b	136	89	0.94	610	45	35	30	20	1.88%	[3,12]
5 Casuarius casuarius a	135	92	0.97	644	50	35	30	25	1.84%	[3,12]
6 Casuarius unappendiculatus a	136	90	0.97	604	64.35	52.65	40.7	33.3	1.26%	[22,27]
7 Apteryx owenii c	110	70	0.4	295	1.9	1	1.3	0.9	23.17%	[22,28]
8 Apteryx haastii c	123	77	0.53	400	3.3	1.5	2.6	1.2	18.59%	[22,28]
9 Apteryx mantelli c	125	78	0.5	417	3.27	2.09	2.59	1.82	17.06%	[22,27]
1 0 Aepyornis maximus f	303	224	3.7	9120	541	334			2.08%	[6,25,26]
11 Megalapteryx didinus g	160	108	1.17	1023	80	28			1.89%	[23,30]
12 Dinornis novaezealandiae g	190	150	1.375	2343	160	91	69	34	2.65%	[10,23,24]
13 Dinornis robustus g	240	178	1.23	4167	275	102	113	61	3.03%	[10,23,24]
14 Pachyornis elephantopus g	221	150	1.79	2725	106	49			3.52%	[23,29]
15 Anomalopteryx didiformis g	165	120	1.39	1302	64	26			2.89%	[23,30]
16 Euryapteryx curtus curtus g	121	97	0.9	624	30	20	20	15	2.94%	[12,23]
17 Euryapteryx curtus gravis g	205	158	1.5	2804	105	67	80	55	3.65%	[12,23]
18 Emeus crassus g	179	134	1	1761	80	52	50	36	3.23%	[23,24,31,32]

Note: Data used in the simulation.