Spotted by my eagle-eyed wife Gretchen entering small set of windchimes on our front porch. Not too difficult to ID via ChatGPT:
I asked: Is there there a wasp that uses grass to build a nest for its offspring?
ChatGPT replied: Yes, there is a type of wasp known as the grass-carrying wasp (Isodontia species) that builds nests using grass. These wasps are solitary and are known for collecting blades of grass to create nests for their offspring. They typically use pre-existing cavities, like hollow plant stems or spaces in wood, to construct the nests. After laying an egg inside the nest, they provision it with paralyzed insects, usually crickets or katydids, for the larvae to feed on once they hatch.
The grass-carrying wasp's nesting behavior is quite distinctive due to the use of grass, which they tuck into the cavities to form protective shelters.