Turnix

54 9 46.9 63.4 A Spreo pulcher 34 64.2 178.7 241.5 A Tchagra senegala 88 53.9 158.6 214.4 A Tockus erythrorhynchus 65 146 312.7 422.6 A Tockus nasutus 106 208 397.9 537.7 A Turnix sylvatica 4 23.2 89.3 120.7 A Upupa epops 16 51.9 154.6 208.9 P Vanellus tectus 417 112.5 261.8 353.8 A ESW (m) 95% conf.

The Buttonquail egg experiment indicated that egg size in the range we tested did not influence small mammal attacks, but size effects were not independent of eggshell thickness; the shells of both Turnix and Coturnix eggs are substantially thicker than those of warbler and sparrow eggs.