Results from the bootstrap for orientation of cattle in the field.

The mean cow direction is the mean direction of the cow in degrees clock-wise from the magnetic north. The “Rayleigh north” is the result of the Rayleigh test, testing the deviation from north. The “P-value north” is the P-value corresponding with this Rayleigh test. “Rayleigh random” is the result of the Rayleigh test, testing the deviation from a random distribution. The “P-value random” is the corresponding P-value. We also report the minimum, maximum and the standard deviation, as we have 1000 bootstrap data sets (S1 File).