Table 1.
magnetic orientation | visual orientation | ||||
bird | shifted field |
shifted field + HF |
bird | shifted field |
shifted field + HF |
b1 | 0.7 | 0.4 | b11 | 0.9 | 1 |
b2 | 0.9 | 0.5 | b12 | 0.6 | 0.7 |
b3 | 0.7 | 0.4 | b13 | 1 | 1 |
b4 | 0.7 | 0.3 | b14 | 1 | 0.7 |
b5 | 0.6 | 0.4 | b15 | 0.9 | 1 |
b6 | 0.8 | 0.8 | b16 | 0.9 | 0.8 |
b7 | 0.8 | 0.6 | b17 | 1 | 0.9 |
mean | 0.74 | 0.49 | mean | 0.9 | 0.87 |
SD | 0.098 | 0.17 | SD | 0.14 | 0.14 |
Scores were calculated from the number of correct and incorrect choices of each bird. A score of 1 shows that all choices were in the correct axis (for magnetic orientation) or in the correct direction (for visual orientation), 0 determined no correct choice.