When Do Swifts Arrive in Uk 2021?

Swifts are migratory throughout their range. They arrive in the UK in the last week of April or early May and stay only long enough to breed. Autumn migration begins in late July or early August. The onset of the migration is believed to be triggered by the lack of insects high in the air.

Are the swifts late this year 2021?

In terms of phenology - the timing of natural events - spring 2019 and 2020 were both considered to be very early years. ... The phenology events recorded so far in 2021 are showing to be, on the whole, a little later, and certainly when compared to these recent early years.

Where are the swifts now 2021?

Now they are flying back to the Congo around West Africa and across the Sahel; amazing flights of extreme endurance. They will have left us, but with luck each Swift will come back to breed next May, maybe to your own house, or to your nestbox if you have put one up for them.