Three ways of catching some protein and wee portions of other nutrients, seen in the Townsville Town Common lately. Nankeen Kestrel flew from low perch, grabbed grasshopper or locust on the ground and carried it into the sky to feed on the wing (on not off, because insect wings are often discarded).
Australian Raven has torn spider nest from Corymbia tessellaris and followed or carried it down to roadside. The birds use road because spiders inside are easier to find on or hiding under road metal. I believe Torresian Crows, supplanted by the ravens in recent years, don't share the passion for such fare.
Spangled Drongo tears into gumtree bark that has split apart after last year's hot fires through the park. Lost track as it flew off but probably a caterpillar went with it and would not have lasted long.
Meantime Brahminy Kite disdained any such grabbing, tearing and probing, unmoving above the Silver Gulls grabbing slivers of discarded bait as beach fisher at Pallarenda refreshed his hooks. Though the kite is much more a scavanger than, say, the Osprey.