In my opinion, it's better to avoid codes in public list-serve groups. The fairly regular changes in bird names by the scientists is another reason.... Best regards, Tim Brush Edinburg, TX /24/12, Harvey Laas <hlaas@xxxxxxxxxxxxxxxx> wrote: From: Harvey Laas <hlaas@xxxxxxxxxxxxxxxx> Subject: [texbirds] Re: Banding Codes on TEXBIRDS To: texbirds@xxxxxxxxxxxxx Date: Sunday, June 24, 2012, 10:24 PM The six-letter codes seem like a good idea; however, there are at least three different ones out there I found with just a brief internet search. Each one is slightly different. I first saw a 6-letter code in the 2008 Smithsonian Field Guide that includes a disc with calls of 138 species. The back of the guide lists these 138 species with a 6-letter code that it says is standardized, but doesn’t mention by whom and it only prints the code for the species on the disc. I found 6-letter codes by John Shipman and Bruce Bowman on the Spokane Audubon website and each has some variation. It looks like the 6 letter code is a good idea that hasn’t been standardized yet, so David’s point is especially valid. Harvey Laas 10 miles N of Brookshire Picking nits since 66 Good Point, David - the inherent problems with the 4-letter codes almost make them more of a hindrance than a help. Corey Finger of the 10,000 Birds blog site uses a six-letter bird code that seems to do a pretty good job of eliminating the obvious duplications. Thus, the Black-tailed Godwit becomes BLTAGO and a Bar-tailed Godwit is a BATAGO. I do not know whether there is an existing list of the six-letter codes, and I am certainly not going to champion their use or acceptance here on TexBirds, but paraphrasing what Arlo says in Alice's Restaurant "...can you imagine fifty people a day (using a six-letter code)...... they may thinks it's a movement" ;-) Clay Taylor TOS Life Member Calallen (Corpus Christi), TX Clay.taylor@xxxxxxxxxxxxxxxxx