you're very welcome :o)
it's a great thing to do, gets you out in the fresh air and gives a bit more interest than just going for a walk. also means if there are any mobility issues, you get a stop/start walk and it's not as tiring, you can walk miles and miles without even noticing.
put some feeders up in the garden too, you'll be REALLY surprised how many different birds you regularly get in an ordinary sururban garden, 38 in ours, and i'm sure there are people who get a lot more than that.
be warned though, you'll get totally hooked :)