Notes and Observations 28

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NOTES A N D OBSERVATIONS Stoats in the King's Forest Reports of Stoats (Mustela erminea) in ermine or partial ermine appear relatively frequently in these Transactions (e.g. Trans. Suffolk Nat. Soc. 23, 70; 24, 99 ; 27, 40) but I am not aware of any survey specifically aimed to determine the distribution of Stoats in the County or the extent of colour change in their fĂźr. However, between 1981 and 1992 a group working on another study in the King's Forest also recorded the sightings of Stoats on many occasions. These sightings have been mapped by John Raincock. The area of forest in question lies on either side of the B1106 road between Culford and Elveden and covers about 10Vi sq. miles. The number of brown Stoats recorded teils us little as many of the observers took them for granted and did not mention them in their reports - which were primarily concerned with the deer. Few of us bother to record the numbers of common plants or animals. In fact only 17 brown Stoats were recorded, but some were seen throughout the winter months and these recorders and the rangers agree that brown individuals far outnumber those in ermine in winter in this region. Eleven Stoats in fĂźll ermine were seen (plus another just outside the forest) and there were five in part ermine (with another seen outside the forest). The earliest an animal in part ermine was seen was on 29 October in 1985. Most were seen in complete or partial ermine after Christmas, i.e. 4 in January, 7 in February, 4 in March and one with a white patch on its upper rump as late as 5 April in 1981. One individual in ermine but with a dark skullcap was seen by two observers on different occasions but generally it was not possible to identify individual animals or determine their movement through the forest. As with so many surveys, this one showed the distribution of observers more than the distribution of the animal studied. Most Stoats were seen in the north and east of the study area and few in the south west. Most Stoats were recorded in Block 23, but that is in the centre of the study area. To me the most interesting fact to emerge from the survey was that Stoats in fĂźll or partial ermine were seen in all years from 1981 to 1992 except in 1988 and 1991. Clearly some Stoats change colour during the winter months in Suffolk in most years, but these individuals are probably only a small part of the total Stoat population. John Raincocks map is retained at the Suffolk Biological Records Centre in Ipswich. I thank him and all the other members of the team who made these interesting observations. (Editor) Grey Squirrei meets a watery grave One morning in the summer of 1991, whilst I was bird-watching from the public hide at Benacre Broad, I saw a Grey Squirrei (Sciurus carolinensis) run at speed from the reed margin, cross 20 yds. or so of exposed mud, and plunge headlong into the Broad. Having failed to locate the presence of any predator, or to identify any cause of this behaviour, I returned my attention

Trans. Suffolk Nat. Soc. 28 (1992)


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