Thanks for all the responses. You guys caught me off guard.
Yes, they have always been trimmed across the top.
They actually are Taxus Hicks Yew Hedges.
Big Bill, Interesting comment. I have my home sprayed 3 times a year for bees, It might very well be leaching off the house in the rain.
Attaching more pics. Do you guys think these are gone?
Thanks for your quick responses. Happy holidays.