Alpine Swift
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Apus melba
Rare & annual vagrants from Southern Europe with 15-25 per year in Britain & 100 records for Ireland from March-July.
Breeds across Southern Europe & Africa.
Winters in tropical Africa.
Adults are mainly brown, except for the white belly.
Juveniles are similar to adults, but their feathers are pale edged.
The call is a drawn-out twittering.