Here in California we call “Steamers” and happens all year long...
“During the trial of the plant in September 2013, thirty-four dead birds were found at the plant. Fifteen had heavily burned feathers, which staff at the plant referred to as "streamers" because they were burned in flight by the intense radiation from the heliostat mirrors.”
https://en.m.wikipedia.org/wiki/Ivanpah_Solar_Power_Facility
Tai