Looks like we have reached a milestone in the weekly quizzes - #100! In another month it will be 2 years since the first quiz, though I've missed an occasional week for various reasons, so the record isn't spotless. And I think at least a couple of times I snuck in something that wasn't a bird.

As far as last week goes, if you're looking for a little frustration, look no farther than the "peeps". That bird was one of three small sandpipers that can make you scratch your head. Of the 3 possibilities we can eliminate one right away - Least Sandpiper - since we have a good look at the legs which would be yellow on a Least. So that leaves with a choice between Semipalmated and Western. The first thing I would look at would be the bill - relatively short and blunt-tipped on a "Semipalm"; longer and slightly drooping on the Western. Everything I have seems to indicate that the Western will also have a somewhat light coloration on the head and my best guess is that this is likely a well-worn juvenile. So in a nutshell the answer is Western Sandpiper.

Have fun with this week's edition - best of luck and great birding!