We call them Cushaw, and they're delicious.Thank you! I wasn't aware butternut squash (we call them pumpkins here) came in several varieties, so found out it is a
Tromboncino Squash
Tromboncino squash, also called Italian trombone squash, is a vining squash that produces fruit up to three feet long. The fruit has a long slender neck with a bulb-like end. The outer skin is usually light green. Trellising their six feet or longer vines is the best method of growing this Italian summer squash.
https://www.garden.eco/what-kind-of-squash-is-this
I'm going to attempt a few more varieties next season.