Species	MantleDarkness	Wingspan	WSmin	WSmax	HandLength	Secondary1	Mass	CLat	WingArea	WingLoading	AspectRatio
Creagrus_furcatus	7.5	1100	1000	1200	409	165.2	687	0.17	114153.2	0.006018141	10.59979046
Larus_argentatus	5	1400	1250	1550	429	193.8	1091	60.56	188179.8	0.005797594	10.41557064
Larus_armenicus	7.75	1300	1200	1400	430.2	195.5	867	38.53	170045.9	0.005098565	9.938493077
Larus_atlanticus	16	1200	1200	1200	391.5	180.7	842.4	-41.31	146095.95	0.005765868	9.856536064
Larus_atricilla	9	1075	950	1200	298.4	123.2	307.4	28.53	95677.12	0.003212994	12.07838405
Larus_audouinii	4.5	1275	1150	1400	394.4	157.8	535	37.53	138958.68	0.003849993	11.69862149
Larus_belcheri	15	1200	1200	1200	365.2	174.5	638.6	-17.15	145672.6	0.004383872	9.885180878
Larus_brunnicephalus	5	1100	1050	1150	333.9	183.1	569.3	36.07	140272.91	0.004058446	8.626041906
Larus_bulleri	4	885	810	960	287.5	122.2	230.2	-42.4	73014.5	0.003152251	10.72697889
Larus_cachinnans	5.75	1410	1370	1450	427.2	186	1111.9	46.47	182800.8	0.006082523	10.87577297
Larus_californicus	6.75	1310	1220	1400	377	156.8	683.4	52.58	146294.4	0.004671334	11.73045585
Larus_canus	6.75	1150	1000	1300	351	145.9	412.5	60.59	116574.1	0.003538779	11.34471551
Larus_cirrocephalus	5.5	1075	1000	1150	319	140.5	374.7	-17.4	106218	0.003527557	10.87974731
Larus_crassirostris	9.25	1210	1180	1240	364.2	149.8	561	40.37	126700.84	0.004427753	11.55556664
Larus_delawarensis	4	1250	1150	1350	366	160	516.3	50.01	141440	0.003650382	11.0470871
Larus_dominicanus	13.74	1350	1280	1420	402	178.5	952.4	-37.5	169218	0.00562842	10.77013084
Larus_fuliginosus	9	1000	1000	1000	341	156.2	380	-0.57	102935.8	0.003691621	9.714793104
Larus_fuscus	10.95	1330	1180	1480	412.2	174.5	762.4	66.29	160156.1	0.004760106	11.04484937
Larus_genei	3	1060	1000	1120	300.8	130	281	41.71	98696	0.002847127	11.38445327
Larus_glaucescens	5.5	1435	1370	1500	411.8	193.5	1056.5	58.07	197989.2	0.005336352	10.40069357
Larus_glaucoides	3.5	1350	1250	1450	396.3	178.8	693.3	70.86	170521.56	0.00406582	10.68779807
Larus_hartlaubii	4.5	920	890	950	269.8	123.8	292	-29.68	80494.76	0.003627565	10.51497017
Larus_heermanni	11	1300	1280	1320	336.2	150.5	500	27.49	145051.9	0.003446973	11.65100216
Larus_hemprichii	11.5	1115	1050	1180	340.8	139.5	451.7	18.3	108000.9	0.004182002	11.51124667
Larus_hyperboreus	3.25	1500	1400	1600	463	223.7	1529	74.66	231976.9	0.006591346	9.699241606
Larus_ichthyaetus	4.5	1595	1490	1700	470.8	210.2	1378.8	48.59	236306.84	0.005834956	10.76576962
Larus_leucophthalmus	12	1075	1000	1150	322.2	133	328.9	16.89	100122.4	0.003284879	11.54212244
Larus_livens	10	1525	1500	1550	403.5	225	1322	28.5	252337.5	0.005239015	9.216327339
Larus_maculipennis	4	1000	950	1050	291.2	129.2	339	-40.29	91576.96	0.003701804	10.9197772
Larus_marinus	13	1550	1450	1650	478.2	227.2	1649.7	60.23	243512.96	0.006774629	9.866004668
Larus_melanocephalus	4	960	920	1000	302.4	129.2	256	45.17	84961.92	0.003013115	10.84721249
Larus_michahellis	6.875	1300	1200	1400	422.8	191.5	1111.9	39.06	167983.8	0.006619031	10.06049393
Larus_minutus	4.75	775	750	800	218.9	92.3	118	57.28	51328.03	0.002298939	11.70169593
Larus_modestus	9	875	800	950	318	141.5	344	-22.95	78815.5	0.004364624	9.714142523
Larus_novaehollandiae	4.5	935	910	960	289.8	136.2	269	-29.1	87876.24	0.003061009	9.94836602
Larus_occidentalis	9.375	1375	1350	1400	397.5	193	922.8	35.71	188657.5	0.004891298	10.02146747
Larus_pacificus	14.75	1500	1310	1690	444.2	203.5	1292	-35.11	214855.3	0.006013489	10.47216429
Larus_philadelphia	6	825	750	900	259.4	106.5	210.7	58.97	60236.4	0.003498051	11.29923103
Larus_pipixcan	8	885	850	920	279.4	123	280	52.2	74488.8	0.003758954	10.51466798
Larus_ridibundus	4.5	1050	1000	1100	291.2	120.2	284	55.04	91207.76	0.00311377	12.08778727
Larus_saundersi	4.5	890	870	910	274.2	105.8	198	37.67	65151.64	0.003039064	12.15779066
Larus_schistisagus	10.75	1475	1450	1500	435	204	1323	53.48	212160	0.00623586	10.25464272
Larus_serranus	4	1100	1050	1150	352.8	164.5	478	-20.26	122914.4	0.003888885	9.844249331
Larus_thayeri	4.5	1425	1370	1480	394.5	176.8	942.5	74.33	182192.4	0.005172993	11.14549784
Leucophaeus_scoresbii	13	1040	1020	1060	323	154	523.5	-51.22	110418	0.004741075	9.795504356
Pagophila_eburnea	0	1140	1080	1200	333.4	129.2	550	74.49	104212.72	0.005277571	12.47064658
Rhodostethia_rosea	4	950	900	1000	251.2	100.5	187	73.42	70229.4	0.002662703	12.85074342
Rissa_brevirostris	8.75	880	840	920	299.8	112.8	377	55.95	65446.56	0.005760425	11.83255468
Rissa_tridactyla	6.75	1065	930	1200	301	122.9	416	59.56	93895.6	0.004430346	12.07963951
Xema_sabini	7.5	950	900	1000	265	107.2	198	72.31	73432	0.002696372	12.29028217