Swifts do stay aloft for 10 months!

Proof that swifts (tårnseiler) can stay in the air without landing for 10 months at a time has been announced and they can live for 20 years which means a single bird can fly 4 million miles in its lifetime! Astonishing! Below the link, a short video of birds divebombing my house responding to me playing swift calls to attract them to my nestbox!

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