Quick note: I'll be on Showcase Minnesota this morning between 10am - 11am answering your birding questions! I got an email from my buddy Doug Buri in Milbank, SD that he's had a few cancellations and has space available on his shorebird identification workshop. This is one of the best birding workshops I have ever attended. Doug literally gets you within five feet of least sandpipers and his easy going and fun techniques will have you sorting your way through the common peeps seen in the midwest.
It's fairly inexpensive to stay in Milbank which is just over the Minnesota border and Doug will take you to some gorgeous remote mudflats. This is a great place to get photos of shorebirds because Doug wants you to get the birds in the best light for id which also means they are in great light for photos. I digiscoped the crap out of the area! The workshop is in early August and details can be found here.