Here, the very high voltage lines of ~60 to many hundred kV are concerned. Their phases are far enough apart, their insulators tall enough, but often they carry more than 3 phases, and sometimes several lines run in parallel. The cables of these powerlines are often invisible to large, fast flying birds, especially those flying at dusk or dawn, against the sun, and flying in flocks. The birds that collide most are great bustards, the kori bustard and the great Indian bustard, the last of which stands to become extinct due to power distribution infrastructure; cranes as a group; and cormorants. Vultures, lammergeyers and large eagles collide too, mostly with the thin earth or lightning wire on top, sometimes a fibre-optic one. They might dodge the first cable, but crash into the next, breaking wings.
bAWARE being able to detect even the weakest of bare cable powerlines, it can detect those large lines at even greater warning distances. Only time will tell, but we expect that even a small number of equipped birds in a flock turning away, will induce the entire flock to avoid the obstacle.
In detail, with sources: line markers and flight diverters, the ruling of India’s Supreme Court for the great Indian bustard.