Reports of this boom of migrant birds are arriving to Madeira Wind Birds. Here are the interesting vagrant species seen by Erik & Marianne Mølgaard (Denmark):

On April 26th
In Prazeres, Calheta
2 Bee-eater
Golden Oriole - 1 Male
Whinchat - 1 female

On April 27th
Paul da Serra - Ribeira da Janela
15 Bee-eater
Green-wingged teal

In Prazeres, Calheta
2 Red-rumped Swallow
Spotted Flycatcher
Pied Flycatcher
Montagu´s Harrier - 1 female