I went down in the rain this morning to the Tamagawa River mouth in Yokohama
for a reported White-rumped Sandpiper-- this is evidently the first Japan
record for the species.  With a typhoon on its way, I didn't hang around to
do any more birding after I found the rarity, but other species now
beginning to show up in migration were Mongolian Plovers (+), Red-necked
Stints (+), Kentish Plovers (a few), Terek Sandpipers (a few), Common
Greenshanks (a few), Ruddy Turnstones (a few), Grey-tailed Tattlers (a good
number), and Dunlin (a few).  We have had a notable local inundation of
terns this season, but they are seabirds, not shorebirds.