Riverlands Migratory Bird Sanctuary.  St. Charles county MO.

Thanks go out to Dave Rogles for the get-together, most folks were friendly.
I caught a burger and desert from Sherri a gentle new birder.

I walked out to Paul's Blind at Heron Pond,
 and got distant looks at White-rumped Sandpipers.
(for sure two)

size reference w/Least in foreground:
long wing, breast marks:
primaries past tail:
if you squint you'll see red at bill base:
speculative flock shots:
for real:

Bill Rudden
St. Louis MO
The Audubon Society of Missouri's Wild Bird Discussion Forum
ASM Fall Meeting, September 23 - 25, 2011 at Camp Clover Point, Lake of the Ozarks State Park, http://mobirds.org/Meetings/