Curious about the tiny miracle unfolding inside those speckled quail eggs? Whether you’re a backyard poultry enthusiast or simply fascinated by the process of life, understanding the timeline for quail egg development is key.
In this guide, we’ll explore the full 18-day incubation journey, from the moment the eggs are carefully set in the incubator to the exciting day the fluffy chicks finally emerge. Get ready to watch patience, precision, and a little bit of magic work together to bring new life into the world.
Understanding Quail Egg Incubation

What is incubation?
Incubation is the process of providing controlled environmental conditions—primarily temperature and humidity—to allow fertilized quail eggs to develop and hatch successfully. During incubation, the eggs are kept warm, and often gently turned, to mimic the natural care a brooding quail would provide. This careful management ensures that the embryos inside the eggs grow properly, eventually emerging as healthy, fluffy chicks.
Typical duration for quail eggs to hatch
For Coturnix quail, one of the most commonly raised species, the average incubation period is 18 days. This timeline represents the typical development from the day the eggs are set in a properly prepared incubator to the moment the chicks pip and fully emerge from their shells. Some eggs may hatch slightly earlier or later, but 18 days is widely considered the standard benchmark for successful hatching.
Variations depending on species and conditions
The incubation period can vary slightly depending on the quail species, the quality of the eggs, and environmental conditions. For example, Coturnix quail eggs may hatch as early as 16 days or as late as 20 days, while other species like Bobwhite or California quail may have different timelines. Factors such as temperature fluctuations, humidity levels, egg age, and handling can influence the exact hatch date. Maintaining a steady temperature of 99.5°F (37.5°C) for Coturnix eggs, proper humidity levels (45% for days 1–14, increasing to 65–75% for the final days), and careful egg turning during the early incubation period all play a crucial role in achieving a high hatch rate.
The 18-Day Quail Egg Incubation Process
Phase 1: Incubation and Turning (Days 1–14)

Initial Incubator Setup and Stabilization
Before setting your quail eggs, it’s crucial to stabilize the incubator. Run the incubator for a full 24 hours before placing any eggs inside. This ensures the environment reaches the right temperature and humidity levels and gives you time to make adjustments if necessary. The incubator should be placed in a location with stable temperature (ideally around 70–75°F or 21–24°C) and away from drafts, direct sunlight, or heat sources that can cause temperature fluctuations.
Core Incubation Requirements
During the first 14 days, your focus will be maintaining the ideal conditions for embryo development:
- Temperature: Keep it consistent at 99.5°F (37.5°C). Any significant fluctuations could harm the developing embryos.
- Humidity: Set it to 45%–55% Relative Humidity (RH). This helps maintain the right moisture level inside the eggs and prevents the membranes from drying out or becoming too wet.
Egg Turning Procedure
Turning the eggs is crucial for healthy development.
- Frequency: Turn the eggs at least 3–5 times per day. This prevents the developing embryo from sticking to the shell, promoting uniform growth.
- Mechanism: If you use an automatic turner, it will handle the job for you, ensuring consistent turning. If you don’t have an automatic turner, you’ll need to manually rotate the eggs, being careful not to shake them too vigorously.
Candling (Optional Check-In)
Candling allows you to check on the development of the embryos.
- Best timing: Days 7–10 are ideal for candling. At this point, you should be able to see some development—darkening of the egg and possibly the shape of an embryo. It’s a great time to check for any non-fertile eggs (clear eggs) that can be removed from the incubator to prevent them from becoming a source of bacteria.
Phase 2: Lockdown (Day 15 to Hatch)

Transitioning to Lockdown
On Day 15, it’s time to prepare for the final stages of hatching.
- Stopping the turner: Cease turning the eggs and remove them from the automatic egg turner or manual rotation process. The embryos are now in their final positioning, preparing for hatching.
- Lay eggs flat: Transfer the eggs to a hatching tray or lay them flat on a non-slip mat. This gives the chicks a better surface to stand on once they hatch.
Lockdown Settings
The key to successful lockdown is increasing humidity and ensuring the right temperature.
- Humidity: Increase the humidity to 65%–75% RH. This is crucial for softening the egg membranes and preventing the chick from becoming “shrink-wrapped” (a condition where the membrane dries out and restricts hatching).
- Temperature: Keep the temperature stable at 99.5°F (37.5°C), but some guides suggest lowering it slightly to 98.5°F (37°C) to give the chicks a more gradual transition.
The Golden Rule of Hatching
Once you enter lockdown, DO NOT open the incubator until the hatching process is complete. Opening the incubator causes a drop in humidity, which can have disastrous effects on the eggs. This is especially critical when chicks begin to pip (break through the shell), as losing moisture at this stage can cause shrink-wrapping, which is often fatal for the chick.
Phase 3: The Hatching Window (Days 16–20)

Signs of Hatching (Day 16–17)
During this phase, the first signs of hatching will begin to appear:
- Hearing first chirps: By Day 16, you may hear soft chirping coming from inside the eggs.
- Pipping: On Day 17, you’ll start to see the first crack (pipping) in the shell. This is when the chick breaks through the shell using its egg tooth.
- Zipping: After pipping, the chick will begin to zip—cut a line around the circumference of the egg—before fully hatching.
Patience is Key
Hatching is a slow and laborious process for the chick.
- It can take anywhere from several hours to a full day for a chick to fully emerge from the egg after its first pip.
- Allow 24–48 hours for the entire clutch to hatch. Some eggs will hatch early, while others may take a bit longer.
Post-Hatch Care in the Incubator
Once the chicks hatch, let them dry and fluff up completely in the incubator before transferring them to the brooder. This can take 12–24 hours. During this time, late hatching chicks will still be emerging, so it’s best to wait until the majority of chicks have hatched before moving them.
Troubleshooting and Moving Forward
Common Incubation Failures
If things don’t go as planned, here are some common issues:
- Shrink-wrapping: This happens when humidity is too low during lockdown, causing the egg membrane to dry out and adhere to the chick.
- Drowning: Excessive humidity in the early stages can cause the chick to drown in the egg.
- Failure to pip or zip: Sometimes a chick doesn’t manage to break through the shell, often due to developmental issues or improper incubation conditions.
Late Hatchers (Day 19–20)
Not all eggs will hatch at the same time.
- If some eggs hatch later than others, give them an additional 24–48 hours before deciding whether they are viable. If they still haven’t hatched by Day 20, it’s generally safe to clean up the incubator.
Brooder Preparation
Once the chicks are fully dry, they can be moved to the brooder.
- Ensure the brooder has a heat source (e.g., heat lamp or heat plate) to keep the chicks at 95°F (35°C) for the first week, then gradually reduce the temperature by 3°F each week.
- Provide fresh water and chick starter feed, making sure the water containers are shallow enough to prevent drowning.
- Keep the brooder environment clean and dry to prevent disease.
By following these carefully laid-out steps, you can enjoy a successful quail egg hatch, ensuring that your chicks arrive healthy and strong. Whether you’re new to hatching or an experienced breeder, this process will guide you toward raising a happy and thriving flock.
Troubleshooting and Moving Forward

Common Incubation Failures
- Shrink-wrap: Occurs when humidity is too low during lockdown (Days 15–18). This causes the egg membrane to dry and stick to the chick, making hatching difficult or impossible. Maintain 65–75% RH during this period.
- Drowning: Results from excessively high humidity during early incubation (Days 1–14). Keep 45–55% RH to prevent embryos from suffocating or eggs absorbing too much water.
- Failure to pip or zip: Often caused by inconsistent temperature or humidity throughout incubation. Ensure a steady temperature of 99.5°F (37.5°C) for forced-air incubators, with proper humidity levels. Avoid opening the incubator unnecessarily.
Late Hatchers (Day 19–20)
- Quail chicks sometimes hatch a day or two later than the average 18-day period.
- Patience is critical: Allow 12–48 hours for chicks that have started pipping but have not fully emerged.
- Only intervene if a chick shows extreme distress or appears trapped. Improper assistance can cause injury or leg deformities.
- After Day 21, unhatched eggs can be removed, and the incubator should be cleaned and disinfected in preparation for the next hatch.
Brooder Preparation
- Temperature: Maintain 95°F (35°C) in the first week, then gradually reduce by 3°F (≈1.5°C) each week until chicks are fully feathered. Use a heat lamp or heat plate.
- Food: Provide a high-quality chick starter feed formulated for quail. Ensure it is accessible and replenished daily.
- Water: Offer in shallow dishes or waterers to prevent drowning, adding marbles or pebbles if needed for safety.
- Bedding: Use clean, dry, non-slip material (paper towels, rubber shelf liner, or pine shavings). Replace regularly to prevent dampness and bacterial growth.
- Space and safety: Ensure the brooder is draft-free, predator-proof, and has enough space for chicks to move away from heat if they get too warm.
This careful monitoring and preparation maximizes hatch success and ensures the newly hatched quail thrive as they transition from the incubator to the brooder.
Successfully hatching quail eggs is a rewarding process that requires careful attention to detail, from temperature control to humidity management. By following the 18-day incubation timeline and addressing common challenges like humidity fluctuations and late hatches, you can maximize your chances of a successful hatch. Whether you’re a beginner or an experienced hatchery enthusiast, the key lies in patience, consistency, and the right setup. With the proper preparation, your quail eggs will hatch into healthy, energetic chicks ready to thrive.
