Complex sentence: Normally, birds adapt within weeks of exposure to bird control devices that are not really alive or an actual threat to their survival, including sound devices, mechanical devices, wind blown scare devices, and partial perch modifications.
Split into simpler sentences: Normally, birds adapt within weeks of exposure to bird control devices that are not alive or an actual threat to their survival. Such bird control devices that birds habituate to within weeks include sound devices, mechanical devices, wind blown scare devices, and partial perch modifications.