Weather and chickens ?

There is talk about weather changes and earth warming. Weather sure is changing as one day it is warm next day it is below zero or tons of snow. The one effect of the warmer weather is what is happening to insect. It does not kill off eggs etc of insects such as jiggers etc. So what happens the next spring and as they come out and bite people and of course desease starts to spread. Of course if we over hunt pheasants etc they do not get the ground insects. This reminds me of teacher that used to keep chickens and would turn loose the chickens in the new area to be gardened. She never had trouble growing her crops as the chickens did their duty-what. So chickens have their job and they are not used anymore. The chickens do not taste the same. I do miss the old fashion chicken soup but never again.