Within an between-year winter-site fidelity of Chiffchaffs Phylloscopus collybita

摘要: Current knowledge concerning between-year winter site fidelity in passerines suggests there might be important inter-specific and regional variations recurrence rates (the proportion of birds recaptured years subsequent to marking). However, are virtually no studies reporting low that show this not simply the result recapture probabilities. This problem can particularly acute for partly nomadic mostly non-territorial species their quarters. The present study shows that, spite apparently behaviour wintering Chiffchaffs Phylloscopus collybita, some individuals become temporarily sedentary. Temporarily sedentary have very small linear home-ranges (ca. 200m) calculated probability (by re-sighting colour-ringed birds) is high. In rate low, suggesting majority surviving faithful. contrast what has been found several detailed other Sylviidae also Parulidae involving territorial birds. type approach developed here should used before any comparisons generalisations winter-site results attempted.