Bug parts plastic or both? Clogging screen on sprinkler water pumped from well for several hours

Property is on a well, Bought a brand new hose and filled my pool for 7 hours the hose was connected inside my house after the well pump but before the home filtration system as that hose been provides the highest flow rate. After filling the pool connected the hose to a sprinkler and let that run for a few hours moving it around the yard then I noticed the pressure was low I thought I had to run my well out of water but checked the end of the screen and all these pieces were blocking the screen not sure if my well is grinding from overuse or I sucked up some bug particles?