Complex sentence: Mobbing calls may also be part of an animal's arsenal in harassing the predator; for example, studies of "Phainopepla" mobbing calls indicate it may serve to enhance the swooping attack on the predators, including Scrub Jays.
Split into simpler sentences: Mobbing calls may also be part of an animal's arsenal in harassing the predator. Studies of "Phainopepla" mobbing calls indicate it may serve to enhance the swooping attack on the predators, including Scrub Jays.