How long will they live?

[ZMSNHCA]

I have 2 black broilers and a dark cornish. I've become quite fond of them and do not plan on processing them. How long can/do these meat birds live naturally?

 

[BantamLover21]

Dark Cornish should live as long as any other chicken, so 3-5 years. I'm not sure about the black broilers. It is likely that they will succumb to heart problems before they reach a year of age due to their heavy weight.