Night screaming

Re; previous post. It may have been cool, but it was also darned cold! And continues so, ice on the ground and freezing fog. Ugh.
For two nights in a row over the weekend we were treated to soundbites of foxy relationships.
A high-pitched shrieking sound, which at first you might think was tomcats fighting, but it's not. Foxes have a more "wordy" vocalisation and they are probably finished mating by now. The screaming is more likely to be a territorial dispute, repelling invaders: or a matrimonial row over food.
Whereas the mating habits of cats would be enough to make human eyes water (female ones, anyway) and give devout thanks for not being cats.
I like it when we hear foxes, it tells us and all other creatures in the area that this turf is Taken!