Caterpillar or larvae

[Sparkway]

These are all over my back yard grass. I can’t let the chickens out because I just put down grass seeds. Any thoughts
Thank you
Anthony

 

[saysfaa]

Looks like a tent caterpillar but I don't know what else might be similar. Hm, caterpillars are larvae - of butterflies and moths.

 

[Acre4Me]

I’m not sure what they are. But, under Social, then “where am I, …” there is a pinned post for states. You can post in the NJ thread since that’s more local to you