![]() At that level, only the brightest stars are visible. According to the Light Pollution Map, the night sky in downtown Indianapolis registers from class 8 to 9 on the Bortle scale, a measure of sky darkness that runs from one to 9. Studies suggest light pollution contributes to the deaths of anywhere from 100 million to one billion birds each year in the United States. Broadwater said those birds can’t get where they want to go if they can’t navigate. He said they follow whatever edible plants or insects are available, so shifts in migration patterns can help identify effects of climate change. Northeast Florida is part of the Atlantic Flyway, a predetermined path that birds migrate along the East Coast.INDIANAPOLIS (WISH) - An environmental scientist on Wednesday said Indiana’s cities pose a serious threat to birds migrating south.Īustin Broadwater, who leads the Amos Butler Audubon Society‘s Lights Out Indy program, said migratory songbirds are key indicators of environmental quality. “The artificial light from the big cities tends to confuse them, they have trouble navigating through the cities, they collide with buildings, they fly around in circles, they get exhausted and just drop on the ground," Antman said. Migrating at night comes with challenge - one of the biggest being artificial lights from cities. “They migrate in the dark to avoid predators and they use the light from the moon and stars to navigate," explained Carolyn Antman, with the Duval Audubon Society. ![]() Johns County Audubon society and the Jacksonville Zoo are launching a new program called “Lights Out Northeast Florida.” ![]() To help, the Duval Audubon society, the St. – Did you know that leaving your outside lights on at night during the fall and spring season can impact a bird’s migration journey?īillions of birds migrate south for the winter and north for the summer ever year, and 70-80% of those birds migrate at night. ![]()
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