Which microphone is best for recording nature sounds?

[CarolineJensen]

I have several on-board microphones and the PCM-A10 as well. I want to record sounds with my nature videos. Which Sony microphone (any of them) would be best for this? 

[pm-r]

For on camera, nothing beats the ECM-B1.  But in shooting 4K nature video content, I've started to walk downrange into the area that I'm shooting, and placing a wireless or bluetooth mic somewhere far away from the camera.  This way my own breathing, standing, and noise isn't recorded.