Erratum to: Behavioral Ecology and Sociobiology 69(1): 13 – 25

DOI 10.1007/s00265-014-1813-9

We apologize for a mistake in Table 7. Speed listed in Table 7 (values for “Approach to speaker - Speed” in coherent situation) was erroneously calculated. The correct values are for coherent situation: 0.07 ± 0.05 and for incoherent situation: 0.23 ± 0.19. Results of GLMM are now Z = 6.1, P = 0.004.