No I don't gill55 - Jackdaw was my "not serious" guess also. There was no criticism of your guess as our posts crossed. Your guess was not there when I typed my flippant answer.
It may be right Gill, but personally I would still be trying for something else. However, if nothing else turns up, I would go with Jackdaw - it is possible, hence my flippant answer also, but in my humble opinion, it is not a shoe-in. There could be something else