Chinastark/bird_dataset huggingface dataset:
Column: city_id
Name: city id
Data format: integer
Description: unique identifier for the city
Column: city_name
Name: city name
Data format: text
Description: name of the city
Column: state
Data format: text
Description: state in which the city is
Column: population 
Data format: integer
Description: population of the city
Column: area
Data format: real
Description: square miles the city covers
Value description: commonsense evidence: 
population density (land area per capita) = area / population