read the passage.\nmaking towers bird - friendly\nthe lights on tall communication towers warn pilots to…

read the passage.\nmaking towers bird - friendly\nthe lights on tall communication towers warn pilots to avoid the towers when flying at night. unfortunately, the steady red lights often used on towers have the opposite effect on birds: the bright beams attract and confuse them. instead of avoiding the lights, the birds fly directly toward them, crashing into the towers or becoming entangled in power lines. millions of birds have died this way. however, there is a solution. unlike steady lights, flashing or blinking lights dont attract birds. in response to demands from conservation groups, the federal aviation administration in 2016 began requiring communication towers in the u.s. to use blinking lights instead of steady ones.\nwhat is the main, or central, idea of the passage?\nto save birds, communication towers have begun using blinking lights.\nbirds are attracted to the steady red lights on communication towers.

read the passage.\nmaking towers bird - friendly\nthe lights on tall communication towers warn pilots to avoid the towers when flying at night. unfortunately, the steady red lights often used on towers have the opposite effect on birds: the bright beams attract and confuse them. instead of avoiding the lights, the birds fly directly toward them, crashing into the towers or becoming entangled in power lines. millions of birds have died this way. however, there is a solution. unlike steady lights, flashing or blinking lights dont attract birds. in response to demands from conservation groups, the federal aviation administration in 2016 began requiring communication towers in the u.s. to use blinking lights instead of steady ones.\nwhat is the main, or central, idea of the passage?\nto save birds, communication towers have begun using blinking lights.\nbirds are attracted to the steady red lights on communication towers.

Answer

Brief Explanations:

The passage first describes the problem of steady - red lights on communication towers attracting and harming birds. Then it mentions that in response to conservation group demands, the Federal Aviation Administration started requiring blinking lights instead. The overall focus is on the change to blinking lights to save birds.

Answer:

To save birds, communication towers have begun using blinking lights.