Plastic erosion-control netting is a hazard to birds.
It is shown below with graythorn (Ziziphus obtusifolia) twigs,
and feathers of a Crissal Thrasher (Toxostoma crissale).
A Crissal Thrasher was found trapped by this
netting, at Colossal Cave Mountain Park in Arizona.
I have also seen a Pied-billed Grebe with erosion-control netting
wrapped around its head, at the pond in front of
Walnut Creek Wastewater Treatment Plant, in Austin, Texas.
In both cases, I was able to capture the bird and free it
from the netting.