I was going to add a cutline but the trees are not cleared so I guess just map the wooded areas and take the natural=wood tag off the refuge relation. I can do the wooded area using Josm as iD is not suited to mapping large areas if you like.
I also noticed on Esri imagery that a powerline pole is missing just to the north of this bit.
https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dcutline