I very very rarely run with headphones, and when I do I tend to listen to podcasts or audiobooks. Sometimes I'm reminded why I prefer to run without a soundtrack.
A couple of days ago I ran out to see the bluebells in daylight. In the little south facing copse where the bluebells always flower earliest, I stood and listened after I'd taken a photo. At least seven different birds were singing (I'm no good at identifying birdsong so I have no idea what they were), and bees and hoverflies were gently buzzing . It was a lovely moment and made me really appreciate the sounds of nature.