(KAIR)--If a small helicopter is seen flying overhead, there's no need for concern: instead, it's just Westar Energy conducting power line inspections.

According to a news release from the energy provider, the specially equipped helicopters are flying along sections of the transmission system in order to capture images that will be used to help identify areas that may need maintenance and to create a more modern record of the transmission system.

The documentation will be used to improve power grid efficiency and reliability.

One helicopter is yellow and white while the other is red.

The release says inspections are generally being conducted from two hours after dawn until two hours before sunset, and may occur on weekends.

The work is expected to last through the middle of the month.