This seems high, where does it say so in the paper? The Tomasik article you use for wild mammals estimates 0.1 to 0.4 trillion wild birds.
I don’t think it makes sense to say that on a given day there are, say, 26 billion poultry alive though, given death rates in farms. You’d need to do more stats to get an estimate of the number of poultry birds alive right now.
Thanks for the link to Saulius’ post; it’s great and I recommend people check it out.
On the trillion wild birds: yeah you’re right, it’s too high—should be 100 billion instead. Thanks for the spot; have changed.
The number is on p. 89 in the supplementary materials—but importantly it’s just aorder of magnitude, rather than a specific estimate. So it’s consistent with Tomasik’s range.
This seems high, where does it say so in the paper? The Tomasik article you use for wild mammals estimates 0.1 to 0.4 trillion wild birds.
You can find some more estimates here https://​​forum.effectivealtruism.org/​​posts/​​pT7AYJdaRp6ZdYfny/​​estimates-of-global-captive-vertebrate-numbers#Chickens
Thanks for the link to Saulius’ post; it’s great and I recommend people check it out.
On the trillion wild birds: yeah you’re right, it’s too high—should be 100 billion instead. Thanks for the spot; have changed.
The number is on p. 89 in the supplementary materials—but importantly it’s just aorder of magnitude, rather than a specific estimate. So it’s consistent with Tomasik’s range.