Well, dear friends, the time has come. I loved Ldthemagicman �s, Edromedina �s and Redbull �s lengthy arguments, but I got caught by Magneto �s simplicity.
Marion �s warnings are to be taken into account.
Some explanations are a bit lurid - all that apparently innocent hunting...
In the end, I must choose Moravc �s non-manicheistic definition, as it allows for both nice and evil creatures (allowing for those jars that remind us of Elinor Rigby!).

By the way, SCREELPOKE, according to Jeffrey Kacirk �s �Forgotten English Calendar �, is �a name bestowed on a crying child; from �screed �, to cry in a shrieking manner.
So many of you were close enough, at least in what sound effects are concerned.
The calendar mentions Dvorak �s unique symphonic poem, �The Noonday Witch �, who would snap up the crying child if it didn �t behave (I do not know why it is mentioned in the calendar, because after all it must have been in Czech and the word is Mid-Yorkshire dialect).
I �ve googled it and, to my surprise, it also means � A person who writes begging letters asking for money, using a different name or personality for each like Thernardier in the novel Les Mis�rables. �
There �s even a blog with links under the name!
Thanks to all of you and keep playing!
Hugs!