[karlkeefer]

I can't speak to the actual problems from chicken bones, but scale may be part of the explanation.

We are producing something like 50 billion chickens for slaughter every year. I don't think that estimate includes laying hens or culled males, either. The scale of chicken production is bonkers relative to natural bird populations.

The most abundant wild bird species is on the order of 1.5 billion. They are sparrow-sized and that's not their annual number.

Framed animals dwarf wild mammals and wild birds by mass:

https://www.weforum.org/agenda/2021/08/total-biomass-weight-...

[giantg2]

In theory, scale shouldn't be an issue. After all, you need enough farms to produce feed for those animals. It's just a matter of processing those by products into fertilizer and distributing it over the massive area that is used for crop production.

Although industrial farming could be considered an environmental problem, regardless of the chickens.

[BurningFrog]

Replacing those 50 billion chickens with "lab grown" meat, will bring huge changes the next few decades.