If you are looking for farming item drops from monsters, please check out the Item Drops section.
These monsters will stay in the monster barn and will produce items on a regular basis. Some are every day, others take a few days to produce. Use the Harvested when in talking range of them to harvest the item. These are also the best monsters to have in your party since it won't interfere with their daily jobs.
Creatures in Red spawn only from the White King Gates. The production time is found in brackets next to each species.
Blackbird (2 Days): C-5 Ancient Ruins, C-5 Ancient Statue, D-5 Nameless Isle
Weegul (2 Days): B-3 Desert Island, F-5 Ancient Statue, Flame Spirit Shrine 1F
Cluckadoodle (Daily): Earth Spirit Shrine 1F, E-4 Wrecked Ship, F-6 Wrecked Ship
Dancing Duck (1 Day): Wind Spirit Shrine 2F
Duck (1 Day): E-3 Nameless Isle, Water Spirit Shrine 1F
Gold Dragon (4 Days): Wind Spirit Shrine 6F
Wyvern (4 Days): A-5 Ancient Ruins, B-7 Shrine, E-3 Nameless Isle, E-4 Wrecked Ship, F-9 Nameless Isle, Wind Spirit Shrine 5F Wind Spirit Shrine 6F
Fire Hornet (1 Day): E-8 Nameless Isle, Flame Spirit Shrine 1F
Hornet (1 Day): H-4 Wrecked Ship, Water Spirit Shrine 1F
Queen Bee (1 Day): G-2 Frost Island, H-4 Mystic Ruins
Buffalo (1 Day): E-3 Nameless Isle, G-6 Statue Island
Buffamoo (Daily): E-5 Verde Island
Buffazoo (1 Day): G-2 Frost Island
Monster Box (9 Day): B-3 Desert Island, B-7 Shrine, Earth Spirit Shrine 3F
Mimic (9 Day): Water Spirit Shrine 2F, Water Spirit Shrine 3F
Claw Dragon (4 Day): A-5 Ancient Ruins, H-4 Mystic Ruins, Wind Spirit Shrine 1F
Fluffy (1 Day): E-8 Jungle Island, G-6 Statue Island
Wooly (1 Day): E-5 Verde Island, F-6 Shrine Island, D-6 Nameless Isle
Wooly King (1 Day): D-4 Nameless Isle, D-6 Nameless Isle, Earth Spirit Shrine 1F, E-5 Verde Island, F-6 Shrine Island