1. Behavioural aspects of fear;Archer,1979
2. New data on the influence of olfactory deprivation on the homing behaviour of pigeons;Baldaccini,1975
3. Pheromones are involved in the control of sexual behaviour in birds;Balthazart;Naturwissenschaften,1979
4. Functional anatomy of the olfactory system in 23 orders of birds;Bang;Acta Anat (Suppl),1971
5. The fear of novelty;Bronson;Psychol Bull,1968