(long time passing).
I walk along Del Monte beach in Crow City, USA (Monterey, California) quite often.
For quite awhile, sandpipers were there in abundance - more than any other bird.
I haven't seen any in a couple of months.
Have they migrated away? Where?
According to this, sandpipers are "year-round" residents in my area (well, "spotted" sandpipers, anyway, I don't know what subspecies these are that are common to my area).