[
  {
    "id": "eggs_bird",
    "type": "requirement",
    "components": [
      [
        [ "egg_bird", 1 ],
        [ "egg_bird_unfert", 1 ],
        [ "egg_chicken", 1 ],
        [ "egg_grouse", 1 ],
        [ "egg_crow", 1 ],
        [ "egg_duck", 1 ],
        [ "egg_goose_canadian", 1 ],
        [ "egg_turkey", 1 ],
        [ "egg_pheasant", 1 ],
        [ "egg_cockatrice", 1 ],
        [ "egg_owlbear", 1 ]
      ]
    ]
  }
]