is The RSPB's Big Garden Birdwatch.
I've enjoyed doing this the past few years, although I've not actually seen many birds, or any of real interest. Perhaps I'll even get to see one, or more, of these which we sometimes hear but very rarely see !
This year I shall be doing it from the allotment site on Sunday morning. Thankfully the weather forecast is looking reasonable for here in London.
If you enjoy getting out in the countryside then have a look at When to Watch Wildlife. I think that it's an excellent site full of useful information for any time of the year.
Have a good weekend !

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26/01/08 @ 10:49