Heliolisk also has Dry Skin, which provides it an immunity to Water-type moves and therefore allows it to threaten a multitude of Water-type Pokemon in UU. It also has a nice immunity to Ghost-type moves, meaning it can switch into Choice-locked Chandelure and nab a free Volt Switch. While Heliolisk has two immunities and a colorful movepool, it is weak to common attacking types in UU such as Ground and Fighting. This is also exacerbated by the fact that it has pitiful 62 / 52 physical bulk, meaning even resisted physical hits are going to take a chunk of Heliolisk's HP.
In fact, wind turbines are way down in the pecking order. Besides habitat degradation and destruction, the top human-built environmental threat to our feathered friends are buildings. As many as 970 million birds crash into them annually, according to a June 2013 study in the Wilson Journal of Ornithology.
Heat can also kill birds in a more insidious way. An owner may place a cage outdoors in the shade in the morning, for fresh air, and as the sun slides across the sky during the day, the bird may end up in the direct sun by the afternoon. With no place to escape the sun, a bird may rapidly develop hyperthermia and die.