So Bill, I take it you are a birder...and do you photograph them, too? I have several close friends that are diehard birders and I used to go on Christmas counts, hawk watches, etc. Haven't gone on any official walks, etc., in a long time - but used to really enjoy getting outside in some different areas...though I never had the lens to photograph, I did have my binoculars!
Over here they have something similar to your BGBW, but call it by a slightly different name, though I much prefer the British choice of words. Ours is called http://www.audubon.org/gbbc/ The Annual Great Backyard Bird Count and is in February.