Izimbangela eziyinhloko zephutha yi-flyover yezinyoni, i-short circuit yezinto ezidayisa izinyoni kanye ne-short circuit yomzimba wezinyoni. Phakathi kwazo, uhambo lomugqa olubangelwa ukuthulula embhoshongweni yizinyoni ezinkulu zamanzi ezifana ne-ardeidae kanye ne-stork lubangela cishe u-90% wephutha lomonakalo wezinyoni ezidayisa izintambo zokudlulisela, okuyimbangela eyinhloko yohambo lwezinyoni ezidayisa izintambo zokudlulisela. I-short circuit yezinto ezidayisa izinyoni, i-short circuit yomzimba wezinyoni ebangelwa yisango lesifunda ikakhulukazi yenzeka ku-distribution circuit. Ngakho-ke, ukugxila komugqa wokudluliselaizipikili ezilwa nezinyoniukuvimbela umonakalo wezinyoni obangelwa yizinyoni ezinkulu.izipikili ezilwa nezinyoniiyinaliti yensimbi efakwe embhoshongweni ukuvimbela izinyoni ezinkulu ukuthi zingahambi embhoshongweni ukuze kuqedwe ukushayisana kwezinyoni. Ukuhlaba kwezinyoni okulwa nokushaywa kwezinyoni kusetshenziswa kakhulu ukuvimbela ukushayisana kwezinyoni zesizwe emgqeni kusuka ku-110 kv kuya ku-500 kv.