Weatherwatch Species that breed around the Arctic Circle are already heading south
July may not feel like autumn, but in the world of birds, the return migration has already started – bringing an autumnal tinge to the air. Species that breed around the Arctic Circle – mostly waders such as plovers and sandpipers – are already heading south, towards their winter quarters in sub-Saharan Africa.
These birds may only have passed through Britain in the opposite, northerly direction a few weeks ago, in mid-to-late May. They have to time both their outward and return journeys very carefully, to coincide with a brief window of opportunity during the middle of the summer, lasting just a few weeks.
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Source: Guardian Environment