Patrick S. wrote -

<<In response to the SEMIPALMATED SANDPIPER at the Montlake Fill, which
are mainly a late summer-early fall migrant in WA, with extremely very
few records in spring, I question the sighting, unless a quality
photograph was taken for exceptional spring record. SEMIPALMATED
SANDPIPER, as well as, BAIRD'S and PECTORAL SANDPIPERS are also both
mainly fall migrants, but also do occur very sparingly in the spring,
BUT I believe the SEMIPALMATED to be even more rare, as they migration
is more inland through the Great Plains in spring, and further west in
late summer and early fall, being mostly juveniles.>>

What you write is normally true. However this seems to be one of those
cold springs where anything goes. The Okanagan Valley of southern BC
fits the same pattern for Semi-Sands: the species either overflies it or
misses it most years. However, a few were seen in Kelowna a couple of
days ago. So best to suspend disbelief and hit the bricks. You may be
surprised at what you find.

-------
Jack Bowling
Prince George, BC
jbowling at direct.ca