Many many moons ago in the 80's I was down on the Southern Vic coast line just outside of Apollo Bay (a place that's commercially stuffed now!) flying a toy R/C glider off the Mariners Lookout site (goat track access way back then) when a large wedgy came cruising on by from behind me to see what species was invading it's territory for food. We both cruised around a while but then in a blink of an eye the wedgy folded his wings & went into a dive heading my way! A few sharp turns I avoided the bird even looping but he followed (although birds don't loop too well as he kinds flicked off at the top) until he swooped past from a side attack, the glider flinched but continued on for a few seconds normally till suddenly the wing folded up! The main fuz went spiraling down towards the black berry bushes below & one wing panel fluttered away in the breeze with the wedgy following it till impact. Bird flew away obviously gloating & I spent the rest of the day trying to find what's left of the toy glider......it's still out there !:-( Some species of birds will shadow a toy plane & even swoop it, seen it many times over many years.
Ive killed a few birds over the years, they sure do make a mess!