TARKIO, Mo. (AP) — Federal wildlife officials are concerned about a proposed wind farm project in northwest Missouri they say is in the migratory corridor for birds flying into the Squaw Creek National Wildlife Refuge.

Lenexa, Kansas-based Tradewind Energy plans to build roughly 150 of the 500-foot-tall wind turbines in central and eastern Atchison County, between Tarkio and Tarkio Prairie Conservation Area.

There already are about 100 turbines on the county’s west side.

The St. Joseph News-Press reports the U.S. Fish and Wildlife Service wants Tradewind to do an environmental assessment and apply for permits to allow protected species such as eagles to be killed at the facility.

Tradewind officials say the company plans to work closely with federal wildlife officials on an eagle conservation plan and will apply for voluntary permits eventually.