They seem to favour the area that Martin suggests, that's where they were seen this year. It is best to stay at this point and wait for them. This morning at Cap de Ses Salines: 5 Gannet, one Fieldfare and three Redwing, none of them easy birds to see here. Mike
Two Cuckoo heard yesterday, both by reliable birders, very early. Also the first Yellow wagtails in and more Barn swallow and House martins.