A studyintheProceedingsoftheRoyalSociety B foundthatanimal-vehiclecollisionsoccurasvehiclespeedsincreasebecauseofthewaybirdslookforpredatorsandotherthreats.
Notethattheyonlyusedthebrown-headedcowbird.
Buttheyfoundthatasthebirdsflewtoward a videoofanoncomingcar, itinitiatedescapebehaviorat a specificdistancefromthethreat.