Attenborough’s sin summary
One swallow doesn’t make a summer, so the saying goes. But it does mean that spring is here, and when you read this you might even have seen the first swallows arriving in Britain on the end of a long journey from their wintering grounds in southern Africa.
Earth watch Simon Marsh
Swallows do not appear to be very strong or direct fliers (see Proverbs 26:2 for a Biblical observation on this), so their long-distance migration is a remarkable feat of endurance.
