Crossword puzzle clue "autumnal event so called because it helps hunters kill their prey"

Autumnal event so called because it helps hunters kill their prey

Autumnal event in 1781

Entertainment options so named because the audience is more detached, per McLuhan (not because he thought they were awesome)

Default Twitter avatar (because birds because Twitter)

Creature that actually helps the heroes kill the Indominus in "Jurassic World"

Activist who said "You can kill a man but you can't kill an idea"

Kill it or just kill

What might lead hunters to twiddle their thumbs?