The iPhone is so versatile and useful to have on you.  So I always bring it with me when running as you can often capture interesting pictures.  This series shows a few I did on a recent run.  I did see a couple of Herons but the iPhone was not the right camera especially when they flew away.  However there will be other opportunities with another camera.  I remember someone saying the best camera is the one you have with you.  Never so true a statement.