No interactions present.
I agree, but Marsh and Willow are both classified under Poecile, rather than Parus, these days. It would be worth editing as Poecile palustris.
Similarly, Coal Tit is now Periparus ater, rather than Parus ater.
My Flickr photos...
to birds group, rather than invertebrates group
Lat/Lng: 54.16814, -2.80107
OS grid ref: SD477750