Birdpedia Waders Id Application – Update available

Hi All, We have just added the ability to filter your Shorebirds/Waders list based on two simple pieces of information that are readily observable in the field. These are: 1. Bill / Head Ratio 2. Curvature of the bill The Bill / Head Ratio is calculated by dividing the length of the Bill by the length of the Head. We have chosen the following ratios as these are most easily determined by casual observation: 1. Bill is distinctly LESS than one Head length (usually from ¾ or less) 2. Bill is approximately EQUAL to one Head length (it can be less or greater but at a casual glance it looks equal) 3. Bill is distinctly GREATER than one head length BUT less than two head lengths (at a casual glance it is definitely greater) 4. Bill is distinctly GREATER than two head lengths BUT less than three head lengths 5. Bill is distinctly GREATER than three head lengths BUT less than four head lengths 6. Bill is distinctly GREATER than four head lengths BUT less than five head lengths Curvature of the bill is also easily (usually) determined by casual observation. We have chosen the following possibilities: 1. Straight 2. De-curved 3. Up-curved 4. Curved to right 5. Spoonbill The latter two are restricted to one species each and neither species is observable in Australia (not yet anyway). But as the idea is to create apps for other countries they are included for completeness. It is hoped that combinations of these two features will easily allow you to eliminate most species and give you a manageable list that you can choose from based on other information provided. As always any comments are appreciated. To access the application point your mobile device to http://www.birdpedia.com/waders.htm. Regards, Martyn Birdpedia.com =============================== To unsubscribe from this mailing list, send the message: unsubscribe (in the body of the message, with no Subject line) to: birding-aus-request@vicnet.net.au http://birding-aus.org ===============================