I am on the verge of buying birding/listing software and have zeroed
in on the AviSys 4.57 software and Thayer 'Birder's Diary". I have
looked at the descriptions on the internet but cant't see much of an
advantage for one or the other. I am asking for advice on the
subject. Would anyone out there care to fill me in with the pros and
cons, recommendations, etc. for these two? Or any others, for that
matter.

Edwin Lamb, Bellevue, WA edsplace at worldnet.att.net