I am indebted to Sanddancer (Tom) for pointing out to me yesterday that the Winter Wren on our banner is now called the Eurasian Wren, which to me is more meaningful. As has been said elsewhere there are various authorities on the naming of birds and there are therefore various correct names. Within the website I try to be consistent and I use http://worldbirdnames.org as my authority. I don't want to be "correcting" members postings so I will leave whatever name you use in position but will add the IOC name in brackets where appropriate.
Prompted by Tom, I looked at IOC Version 2.5 released on 4th July 2010 where I found that, following splits of the (about 80) American Wren species, the Troglodytes troglodytes is indeed now called the Eurasian Wren.
I have corrected the Feature on Wrens and apologise for not picking this up earlier - actually I tend to be a lumper not a splitter so I had missed it.