I was going to post this as an observation, but since the culprit has fled the scene, I didn’t expect a positive ID could be made.
Even so, I thought it was interesting enough to share.
The photo was taken here:
https://gridreferencefinder.com?gr=SE4046608888|Point_s_C|1&t=Point%20C&v=r
Right by a road, and not too far from a large pond.
Any ideas who might enjoy a rosehip for dinner, and leave a mess like this?