Life expectancy and egg size (cm) for my bantams?

[babbychickens]

I have a Polish, a Cochin, and a Frizzle Cochin x Silkie

 

[cavemanrich]

You can expect them to live about 10 years. Eggs will be small. Here is a pix of eggs from my chickens. Left to Right.
RIR LF,,,, Red Sex Link LF,,,, Polish LF,,,, Old English Game Hen Bantam.
Only my OEGH are banties. Last egg. Other chickens are large fowl.

WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,,,, and