I think it is a willowherb species
It is 100% plant, but could be a weed. A Potato plant growing in a Barley field is a weed!
Another East Anglian. My garden and I are near Bury St Edmunds
Victoria is spot on. Several years ago the Birdfoods Standards Association was formed. Now the Birdcare Standards Association. They aim to sell quality bird food which is aflatoxin free.
I have a mixture which were free on gardening magazines and lots of old seeds from previous years. My last purchases were from Marshalls and Terwins. Terwins because they are local to where I live in Suffolk.
Probably spelled incorrectly but Aqualegia, they are looking great at the moment and the bees are busy in them.
I would have thought a proper cloche rather than fleece so the soil can actually warm for at least 2 weeks before sowing. It has been exceptionally cold though and I am sowing into the greenhouse at the moment toplant out later.
There is also the risk of spreading disease into otherwise clean ponds.
Arrange to go to a local nature reserve, many now have pond dipping facilites and a warden who would be more than happy to help with ID.
Blackbird and Collared Dove have been busy in our garden coolecting dry grass and fine twigs.
Sadly no picture but a Happy Christmas to all of you frm a wet Suffolk. All the best for 2013, may the veggies be with you.