Updated

Strong winds and high tides may have contributed to the deaths of more than 60 brown pelicans killed by oncoming traffic along a highway near Texas' border with Mexico.

The Brownsville Herald reports (http://bit.ly/2hgtnyR ) that northerly winds and surging tides Thursday likely pushed pelicans to roost near a concrete traffic divider on a highway connecting Port Isabel and Brownsville, Texas.

Tom deMaar, senior veterinarian at Brownsville's Gladys Porter Zoo, was driving when he saw the birds close to oncoming traffic.

DeMaar and a sheriff's deputy stopped and tried to get the pelicans to relocate. But traffic moved fast through the area — where speed limits are 75 miles per hour — and 64 pelicans were killed.

Authorities later posted temporary signs warning drivers of pelicans in the roadway.

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Information from: The Brownsville Herald, http://www.brownsvilleherald.com