← on nowLGR-037 · v0.1.0 · model · model what cats kill: how much, per second and per year
what cats kill · birds and small mammals · united states only
killed by cats we keep or abandoned
16 billion
a year
507
a second
44 million
a day
worldwide
?
no ledger. australia counts about a billion and a half a year. most countries do not count.
method Loss, Will & Marra 2013 (US); Murphy et al. 2019 (australia). midpoint of a wide range.
- not killed by humans, so not in the total on this page. killed by animals we breed, keep and let go. the range is wide: one to four billion birds, six to twenty-two billion mammals, a year, in one country.source: Loss, Will & Marra 2013, Nature Communications; Murphy et al. 2019 (australia)
- unowned cats do most of it. the ones we abandoned.source: Loss et al. 2013
live. this is the channel itself. embed it anywhere:
<iframe src="https://thetoll.earth/?channel=what%20cats%20kill" width="100%" height="520" style="border:1px solid #D9DDDB" title="the toll · what cats kill"></iframe>
or the whole broadcast, every channel, the same for everyone:
<iframe src="https://thetoll.earth/?embed=1" width="100%" height="520" style="border:1px solid #D9DDDB" title="the toll · on now, everywhere"></iframe>
how this number is built
- method
- Loss, Will & Marra 2013 (US); Murphy et al. 2019 (australia). midpoint of a wide range.
- range
- US: 1.3–4 billion birds and 6.3–22 billion mammals/yr
- confidence
- model
- weakness
- the widest range on the animal side of the site; explicitly not counted in the killed-by-humans total.
- dispute
- dispute LGR-037 · corrections are credited
- data
- channels.json (sign-in) · full entry · CC BY 4.0