For this was on seynt Volantynys day
Whan euery bryd comyth there to chese his make

(For this was on St. Valentine's Day,
when every bird cometh there to choose his mate)

- Chaucer, Parlement of Foules

In the spirit of Valentines Day, traditionally the first day of bird song and the bird nesting season, RSPB South West are letting nature sing by giving away a free blackbird song audio track. You can download it from the link above. 

The track was recorded by the RSPB’s Tony Whitehead in Yarner Wood NNR on the edge of Dartmoor in Devon back in 2012.