Skip to Main Content
Table 2.

Testing for the physical principle underlying the chickens' magnetic compass

Correct directional choices
Latencies
Test conditionTests per birdPercentage correct (mean ± s.d.)Individuals with >50% correct choicesSignificant directional preference?Different from C?Time (s) (mean ± s.d.)Different from C?
C3, `white' light 73±21 5/6 n.s. C3 8.6±4.6 C3 
465 nm blue light 73±30 5/6 n.s. n.s. 24.3±11.1 n.s. 
645 nm red light 50±24 2/6 n.s. n.s. 51.3±21.4 *** 
C4, static field only 10 66±14 5(3)/8 C4 55.2±48.4 C4 
1.566 MHz, 480 nT 10 50±11 2(3)/8 n.s. 45.2±31.4 n.s. 
1.566 MHz, 48 nT, 10 46±13 3(1)/8 n.s. 46.7±33.6 n.s. 
C5, no treatment 78±17 8/8 ** C5 22.9±31.7 C5 
Local anaesthesia 75±18 8/8 ** n.s. 55.5±37.9 
Correct directional choices
Latencies
Test conditionTests per birdPercentage correct (mean ± s.d.)Individuals with >50% correct choicesSignificant directional preference?Different from C?Time (s) (mean ± s.d.)Different from C?
C3, `white' light 73±21 5/6 n.s. C3 8.6±4.6 C3 
465 nm blue light 73±30 5/6 n.s. n.s. 24.3±11.1 n.s. 
645 nm red light 50±24 2/6 n.s. n.s. 51.3±21.4 *** 
C4, static field only 10 66±14 5(3)/8 C4 55.2±48.4 C4 
1.566 MHz, 480 nT 10 50±11 2(3)/8 n.s. 45.2±31.4 n.s. 
1.566 MHz, 48 nT, 10 46±13 3(1)/8 n.s. 46.7±33.6 n.s. 
C5, no treatment 78±17 8/8 ** C5 22.9±31.7 C5 
Local anaesthesia 75±18 8/8 ** n.s. 55.5±37.9 

In the series with the oscillating fields, 10 tests per bird were tested;here, column 4 indicates the number of birds with more than 50% correct choices and, in parentheses, those with exactly 50% correct choices. For other explanations, see Table 1 

Close Modal

or Create an Account

Close Modal
Close Modal