There is no item limit to a zone, but players are subject to 100 successful digs in total per real life day on a rental chocobo, and 100~200 digs on a raised chocobo.
Basics
In order to dig, you will need Gysahl Greens, purchasable from NPCs nearby each chocobo stable.
Gysahl greens are consumed regardless of successful dig or failure.
As of the March 2026 Version Update, a player's Chocobo Digging Skill is now listed as "Wing Skill", and integer increases are displayed in the chat log upon skill increase:
A player can check their current Wing Skill by speaking to the following NPCs:
Prior to March 2026, Chocobo digging possessed an invisible rank.
One's chocobo digging rank can additionally be determined based upon the time (in seconds) you must wait, after zoning in to an area, before you may begin digging.
The delay between digs also decreases as ones digging rank increases. The daily limit is successful digs and is not total dig attempts. Most successful digs count as 1 fatigue but as you level, your bird may get an occasional free dig. Daily maximum dig is 100 items. You need to move away (>2 yalms) from previous dig or you will fail to dig. There may be a longer history than 1 dig, so it's best to walk around the zone.
The items available in a zone also change as you rank up.
The chocobo digging experience may be enhanced using either Duration gear and by using a few one-off pieces of equipment:
Blue Race Silks - 50% of the time, a successful dig will not count towards the daily fatigue cap.
Sky Blue Race Silks - Gives a message about your chocobo learning something ~50% of the time on successful digs, which is likely related to skilling up faster.
It is unclear which of the two Race Silks you should use if you want to cap digging skill, but either will be better than neither.
Chocobo Rope - Slightly increases the digging skillup rate.
Black Chocobo Suit - Reduces the chance of obtaining common items by 50%, and increases the chance of obtaining rare items by 50%.
Denim Pants +1 - Reduces the chance of obtaining common items by 50%, and increases the chance of obtaining rare items by 50%.
Since these pants and the Black Chocobo Suitreduces your chances of obtaining common items (a much higher pool), wearing either will greatly lower your dig rate. Not recommended for skilling up at low ranks.
Egg Helm - Adds Egg-themed items to the chocobo digging pool.
This can be used to increase the odds of digging something up if seeking skillups.
NPC Rented Chocobo Duration gear:
Orange Race Silks - Increases riding duration by 10 minutes for a rented chocobo.
Chocobo Wand - +30 minutes. Can be dual wielded for +60.
Red Race Silks - Increases riding duration by 10 minutes for a personal chocobo.
Personal Chocobo
Personal Chocobos, raised in the stables and called by Chocobo Whistle or via the "/mount chocobo" command, have a few bonuses. These bonuses depend on their stats, which only update when you re-register them for riding at a chocobo trainer NPC.
They have a higher successful digs/day cap
You may use a normal Chocobo for the first 100 successful digs and then switch to your personal chocobo to dig the difference
This is related to the Endurance stat, from my observations it's approximately 2 points in endurance = 1 successful dig over base of 100. Note: The ability Canter does NOT increase successful digs. Therefore, the 200 dig cap is reached at approximately 200/255 points in Endurance stat, for example:
E = approximately 100 - 115 dig cap
B = approximately 164 - 179 dig cap
S = approximately 196 - 200 dig cap
SS = 200 cap (no change)
They will occasionally "refuse to partake" in Gysahl Greens on successful or unsuccessful digs.
This rate is related to their Discernment stat
B = 15%
C = 10%
They can learn the Bore and Burrow abilities, which change the distribution of items available in each zone.
Burrow allows the chocobo access to any Gardening seeds, Beastcoins, feathers, Spider Webs, mushrooms, or roots and greens such as Gysahl, Ginger, Napa, Chamomile, Deathball, etc.
Bore allows the chocobo to access any crystals, logs, shells, scales, or ores
Certain zone pools allow you to obtain many of these items without Burrow or Bore.
Your Chocobo will have an increased chance for digging skill to increase every time it digs.
Note: When run concurrently with the Hyper Chocobo Digging Campaign below, experience gains will be properly applied even though there are no changes in visual effects.
The delay between subsequent digs and the time you need to wait between zoning and your first dig will both be decreased.
If your Chocobo Digging skill is already at its maximum, this campaign does not apply.
Note: As mentioned above, this is not a "Plus!" campaign. these are two entirely different campaigns, even though the name does not imply that.
Goblin Diggers
Goblin Diggers sporadically appear in some diggable zones and bury items. After they bury the item, they will move on and you will be able to dig it up. This triggers a different series of digging messages (indicating proximity) than normal, and items dug up this way do not count against your daily fatigue quota.
"You feel there's something nearby." will tell you the Goblin Digger buried something close by.
Weather and Moonphase
Some items can only be dug in specific weather. For instance, Clusters are only available during double weather.
These count against your daily fatigue quota.
Colored rock (Red Rock, etc) and Elemental Ore is determined by weather. Elemental Ore can only be obtained when the Moon Phase is on the first 7 Vana'diel Days of Waxing Crescent (7%-21%), there has to be elemental weather, and they can only be found in non-expansion middle lands zones. It also seems to specifically be zones in the vicinity of Jeuno (e.g. Fire Ore can be obtained in Rolanberry Fields but not Eastern Altepa Desert or Valkurm Dunes).
Moon phase previous determined the availability of items in a zone. Historically, zones were able to be dug clean by multiple players and few to no items would be left until replaced at a certain moon phase. This was removed in the June 7th 2016 update. Thus there is no longer a universal item limit per zone, only a daily personal fatigue limit similar to fishing.
Blue Race Silks - 50% of the time, a successful dig will not count towards the daily fatigue cap.
Sky Blue Race Silks - Gives a message about your chocobo learning something ~50% of the time on successful digs, which is likely related to skilling up faster.
Chocobo Rope - Slightly increases the digging skillup rate.
Black Chocobo Suit - Reduces the chance of obtaining common items by 50%, and increases the chance of obtaining rare items by 50%.
Denim Pants +1 - Reduces the chance of obtaining common items by 50%, and increases the chance of obtaining rare items by 50%.
Egg Helm - Adds Egg-themed items to the chocobo digging pool.
Orange Race Silks - Increases riding duration by 10 minutes for a rented chocobo.
Chocobo Wand - +30 minutes. Can be dual wielded for +60.
Chocobo Torque - +4 minutes.
the Chocobo/Rider's set, +3 minutes for hands or feet, +4 for legs, +5 for body.
Red Race Silks - Increases riding duration by 10 minutes for a personal chocobo.
Gysahl Greens.
Red Rock, etc) and Elemental Ore is determined by weather. 
Elemental Ore can only be obtained when the Moon Phase is on the first 7 Vana'diel Days of Waxing Crescent (7%-21%), there has to be elemental weather, and they can only be found in non-expansion middle lands zones. It also seems to specifically be zones in the vicinity of Jeuno (e.g. Fire Ore can be obtained in Rolanberry Fields but not Eastern Altepa Desert or Valkurm Dunes).
