1) Confine 2) Confine a budgerigar 3) Confine a canary 4) Coop up 5) Coop up in a coop 6) Lock up 7) Lock up in a bar room 8) Pen in 9) Put in a zoo 10) Put in the pen 11) To confine in or as in a cage 12) Trap Found on https://www.crosswordclues.com/clue/encage
En·cage' transitive verb [ imperfect & past participle Encaged ; present participle & verbal noun Engaging .] [ Prefix en- + cage : confer French encager .] To confine in a cage; to coop up. Shak. Found on http://www.encyclo.co.uk/webster/E/34