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The test was carried out in the Central Poland, during the autumn migration in years 1997 and 1998, and the object was the Robin Erithacus rubecula. The aim of the study was the verification of the new field method for studying directional preferences in small Passerine migrants, proposed by Busse (1995). In total, 843 Robins were tested in "Busse's cage". Directions preferred by the tested...
Work done in the Warsaw area in the December — early April periods of the years 1994-96 involved the capture, measurement and weighing of 862 Great Tits (of which some were caught and measured many times). Studies were centred on old broad-leaved forest and nearby settlements. The mean wing lengths of males and females were 76.1 and 73.1mm respectively (SD of 1.5 and 1.3). A method was proposed by...
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