reading the signal…
Signals / Object / Street-level imagery
in Berkeley, CA·counted·323 all time
A group of shorebirds, often sandpipers, gathered together along beaches, mudflats, or shallow coastal water.
Counted, not streamed: Shorebird Flock has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.