There are probably another 6 weeks before we see the trees coated in fresh green, the blossom well out, and fields of yellow rape. Already the first sand martins are returning to Devon and there has even been a report of a returning swallow in Devon. It will probably be into April before I spot swallows up here in East Anglia. Usually I see my first swallows here April 7-14th. Swifts are not usually seen (by me at least!) until the end of April.
These returning migrants bring joy to my heart: long after I am gone they will still be doing this journey as their ancestors have done for thousands of years. I admit there have been times when I never thought I'd see this spring.