INITIAL ORIENTATION OF DIRECTIONALLY TRAINED PIGEONS UNDER OVERCAST AND SUNNY CONDITIONS

SUMMARY Two groups of one year old pigeons, trained from two opposite directions, were released under overcast and under sun from two places off the training lines, 31 and 58 km from the loft. Pigeons oriented correctly in all the releases; under sun, the two groups deflected from each other in a manner predictable according to the training, but no deflection was observed under overcast.