...’ olfactory map. Our results give further support to the olfactory navigation hypothesis and exclude the possibility that the marked impairment of the homing ability of pigeons made anosmic by washing their olfactory mucosa with zinc sulphate can be due simply to a systemic effect. It is therefore...

... at that time, empirical support from a wide variety of experiments emanating from Papi’s laboratory in Pisa has stimulated a quarter of a century of experiments, theorizing, advocacy and dissent. The issue is reviewed here in contributions by Hans Wallraff, one of the chief proponents of olfactory navigation...

..., the hypothesis of olfactory navigation was proposed. Attempts to replicate these findings at other lofts produced widely differing effects, which suggested a highly variable role of olfaction. However, meteorological data, as well as certain other aspects of the findings, throw doubt on the role of odours...

... familiar site olfactory navigation homing Columba livia Among the many hypotheses put forward to explain pigeon homing (reviewed by Schmidt-Koenig, 1979 , 1985 , 1987 ; Wiltschko and Wiltschko, 1978 , 1982 , 1987 ; Waldvogel, 1989 ; Wallraff, 1988 a ; Papi, 1990 ), olfactory...

... – 251 . 10.1002/aja.1001310208 Papi , F. ( 1990 ). Olfactory navigation in birds . Experientia 46 , 352 – 362 . 10.1007/BF01952168 Papi , F. and Casini , G. ( 1990 ). Pigeons with ablated pyriform cortex home from familiar but not from unfamiliar sites . Proc...