POSSIBLE SECOND CLUTCHES IN A MEDITERRANEAN MONTANE POPULATION OF THE EURASIAN

Three of eleven Eurasian kestrel (Falco tinnunculus) pairs from a montane population in central Spain began possible second clutches after chicks of the first had fledged. The meandaying date of first clutches for double-brooded pairs was earlier than single-brooded pairs and double-brooded pairs laid larger first clutches and fledged more young than single-brooded pairs. Overall, second clutch- es were less productive. The low latitude and high availability of prey in this study area may explain the occurrence of the second breeding attempts in this species.