Hey Math Ace, on a more serious note about the size of the combs on your hens ------ just an observation/thought I just had......I once saw someone post pictures of some "battery" hens they had rescued/purchased and the combs were huge, much larger than your girls', I mean huge, and floppy. The birds had been in a hot enclosed egg production facility their entire life. Once she had them for awhile, and they were out in the open, in pens, the combs shrank significantly. I remember reading back then, that the comb actually acts as a sort of heat regulator.
So....just wondering.....does the comb size on your various hens get smaller in the winter or have you noticed any difference in when/if it gets larger/smaller????? Has it been really hot where you are this summer?