reading the signal…
Signals / Object / Street-level imagery
in Tucson, AZ·counted·285 all time
A stonechat is a small songbird with a compact body, dark head, and orange-brown chest markings.
Counted, not streamed: Stonechat 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.