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Stress may be an important variable affecting the survival of the captured hares, for this reason the Authors studied the effect of the use of a blindfolding hood applied to the hares immediately after net trapping. A total of 119 hares were captured by coursing with 3-4 dogs (greyhounds or lurchers) in no hunting areas of Tuscany. Immediately after net trapping 38 hares were blindfolded with a hood and 81 were normally handled to the wooden darkened capture- boxes without blinding their eyes (control). From all the hares a sample of blood was collected within 1-2 min by the auricular vein. Blood samples were analyzed for haemocromocytometry and metabolic profile determination. Data were analyzed by ANOVA. Sub-clinically stressed hares were discriminated from nonstressed hares by the use of the discriminant function based on CK, AST and glucose and the differences were tested by <em>chi</em>²_c Results showed that body temperature, heart and respiratory rates, glucose, cholesterol, CK, AST, ALT, BUN, total protein and some haemocromo-cytometric parameters were significantly higher in captured hares without blindfold. The incidence of subclinically stressed hares was 26% in the hares equipped with the blindfold and 81% in the hares without blindfold (<em>chi</em>²_c=32.98, P<0.0001) (presence of subclinical stress discriminated by the use of a discriminant function based on CPK, AST and glucose). For this reason the procedures designed for the translocation of the hares could take advantage by the use of a blindfold which should be applied to the hares immediately after their trapping.