Hi, about 4 weeks ago 5 signets hatched, the day after 1 was missing, then 2 or 3 days after another 1 went missing leaving the 3 for 2 weeks these are nested on the canal in warth, Radcliffe. Then last week 2 went missing at the same time, 1 was left that did'nt look very well, rang RSPCA who came down nothing good be done because signet was on back and dying and mother was ignoring, heard that a mink could be in the area, could this have taken the signets?