2018 Central Park Squirrel Census - Hectare Data
The Squirrel Census (https://www.thesquirrelcensus.com/) is a multimedia science, design, and storytelling project focusing on the Eastern gray (Sciurus carolinensis). They count squirrels and present their findings to the public. This table contains environmental data related to each of the 350 “countable” hectares of Central Park. Examples include weather, litter, animals sighted, and human density.
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Freshness
The publisher's promise
How the agency that publishes this data says it keeps the data current.
Dormant
- Says it updates
- Historical data
- Actually updates about every
- —
- Publisher last updated the data
- Oct 15, 2019
Our mirror
Whether our copy of this data is current with the source.
In sync
- We last synced
- Oct 15, 2019, 12:40 PM
- Rows in our copy
- 700
- Rows at the source
- 700
- Our copy trails the source by
- under a minute
Columns
Each source column, with the name and type we use to store it.
The publisher has not provided a data dictionary.
0 of 13 columns carry a concept; 13 carry a description from the publisher. Read the concept column before you join. A column with no concept carries no claim from us, and a name that looks like a key is not one.
| Source field | Display name | What the publisher says it is | Concept | Source type | Stored as | Stored type | Row identifier | Unit |
|---|---|---|---|---|---|---|---|---|
other_animal_sightings | Other Animal Sightings | Comma separated values indicating other animals sighted in the hectare. A list of other animals common to the park were provided; however, other animals were listed as well. | Not bound | Text | other_animal_sightings | text | — | |
total_time_of_sighting | Total Time of Sighting | The sighting session duration, in minutes. | Not bound | Number | total_time_of_sighting | numeric | — | |
number_of_squirrels | Number of Squirrels | The number of squirrels sighted in the hectare during the sighting session. | Not bound | Number | number_of_squirrels | numeric | — | |
hectare_conditions_notes | Hectare Conditions Notes | Sighters occasionally added commentary on the hectare conditions. These notes are provided here. | Not bound | Text | hectare_conditions_notes | text | — | |
sighter_observed_weather | Sighter Observed Weather Data | Each sighter was asked to describe the weather conditions before starting each sighting session. Weather values varied widely, and are in some cases inaccurate. | Not bound | Text | sighter_observed_weather | text | — | |
anonymized_sighter | Anonymized Sighter | Sighter names were alphabetized then assigned a number (1-267) so that the individual abilities and characteristics of each sighter could be taken into account. | Not bound | Number | anonymized_sighter | numeric | — | |
hectare | Hectare | ID tag, which is derived from the hectare grid used to divide and count the park area. One axis that runs predominantly north-to-south is numerical (1-42), and the axis that runs predominantly east-to-west |
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This file was produced on Aug 25, 2026, 10:22 PM.
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Source and attribution
Where this data comes from, which version we hold, and what we changed.
- Source
- https://data.cityofnewyork.us/d/ej9h-v6g2
- Version
- Content hash:
900221c04a675a2053cc890ecb4882513ee32a7b7b0d12ee42fe360196d54929 - What we changed
- We did not change the data. We stored it as published.
- Publisher
- codenownyc
- We retrieved it
- Oct 15, 2019, 12:40 PM
Update history
| Started | Kind | Result | Rows written | Produced by |
|---|---|---|---|---|
| Aug 25, 2026, 9:45 PM | full_replace | success | 700 | codenow-nycmesh-container-oci.jfrog.io/codenow/citytap-pull:0.1.72 |