Table 1.

MANOVA analyses showed that the colour patterns in the meals of the two warbler species differed from simulated random compositions in all months except for one in blackcaps (see also figure 2). Columns indicate the frequencies of observed meals (in %) that are outside the 2.5% and 97.5% percentiles of the simulated values for the achromatic, x, y and z components of the colour space.

species and period(Wilk's lambda)p%A%x%y%z
Sylvia atricapilla
 October 1981, n = 44
(0.9990)
**4.56.84.59.0
 November 1981, n = 36
(0.9999)
n.s.5.55.62.816.7
 October 1982, n = 91
(0.9837)
**26.434.14.414.3
 November 1982, n = 206
(0.9963)
**15.512.63.420.4
Sylvia borin
 September 1981, n = 27
(0.9991)
**14.811.17.425.9
 October 1981, n = 17
(0.9998)
*11.835.35.917.6
 September 1982, n = 73
(0.9272)
**2675.326.28.2
 October 1982, n = 17
(0.9886)
**35.341.25.911.8
  • **p < 0.0001; *p < 0.05; n.s., non-significant.