Lucas Delgado
There are several ways to tell male chicks from female chicks. Some of the methods used include vent sexing, colour sexing, observing physical features, and behavioural patterns. Vent sexing is considered the most accurate method, but it can be harmful to the chick if not done correctly and is therefore typically performed by professionals. Colour sexing involves taking advantage of sex-link genes that control down and feather colour. Auto-sexing or sex-link breeds are distinguished by different physical features and markings, such as head colour or wing feather length. Behavioural patterns can also be indicative of gender, with males tending to be more active and bold, while females may be more easily frightened by loud noises.
| Characteristics | Values |
|---|---|
| Behaviour | Males are less skittish, more likely to bully their peers, and issue warning chirps. Females are more easily frightened by loud noises and will run in response. |
| Size | Males tend to grow larger and faster than females. |
| Stance | Males have a higher stance. |
| Legs | Males have thicker legs. |
| Comb and wattle | Males have larger, redder combs and wattles. |
| Hackle or saddle feathers | Males develop these. |
| Tail | Males have longer tails. |
| Crowing | Males will start to crow from around 12 weeks old. |
| Submissive squat | Females will squat low and spread their wings as a sign they are ready to mate. |
| Wing feathers | Males have uniform wing feathers, females have wing feathers of varying sizes. |
| Auto-sexing | Some breeds are auto-sexing, meaning they have different physical features or markings. For example, male Rhode Island Red or New Hampshire chicks have gold down colouring, whereas female Red Stars hatch reddish-gold. |
| Vent sexing | Vent sexing is the most accurate way to determine the sex of a chick. If there is a bump in the anal vent, the chick is likely male. |
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What You'll Learn
Auto-sexing or sex-linked breeds: Look for physical features and markings
Auto-sexing and sex-linked breeds are the most reliable methods of determining the sex of day-old chicks. These methods involve looking for physical features and markings that differ between male and female chicks.
Auto-sexing breeds are purebred chickens that present clear colour markings and patterns based on sex at hatch. Male and female chicks may be different colours or shades, or they may have different feather markings. For example, Barred Plymouth Rocks and their crosses are an easy-to-obtain auto-sexing breed. All Barred Rock chicks will have a white spot on their heads, but the males will have a larger spot. The females may also have darker down over their bodies. Cuckoo Maran chicks will have similar markings, as will Bielefelders. The latter will also have what is commonly referred to as a chipmunk stripe down their back, which is darker brown on the females.
Other autosexing breeds include Buckeyes, Rhode Island Reds, and Orpingtons. The males will have a white spot on their wing, and the females will have darker colouring. Dark Cornish, Silver Leghorn, and Welsummer chicks are also auto-sexing breeds with similar colouring to each other. Dominique breeds also have traits that make it easier to tell males from females. Females have a small white or off-white, well-defined spot on the top of their heads, while males may have a small, diffuse spot on their heads and can also have a lighter, silvery appearance overall.
Sex-linked breeds are hybrids, which means the rooster is one breed and the hen is another. They are produced by crossing two different purebred chickens with each other to generate chicks that follow certain colour patterns at hatch, which helps to identify their gender. For example, the Red Star is a sex-linked breed, in which a Rhode Island Red rooster is bred to a White Plymouth Rock hen. The resulting chicks will be rusty-coloured if female and light yellow if male. The Golden Buff is another example of a sex-linked breed, with females that are golden in colour and males that are lighter, almost off-white.
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Behaviour: Males tend to be bolder and less skittish
Behavioural differences between male and female chicks can be observed as early as one week after hatching. Male chicks tend to be bolder and less skittish than females, who are more easily frightened by loud noises and are more likely to run in response. Male chicks may also be more aggressive and dominant, chest-bumping and trying to stand over one another. They may also react aggressively to sudden movements or new objects.
Another way to observe these behavioural differences is to approach the chicks while clapping your hands. Male chicks will issue warning chirps, while females will usually stay silent. If you pick them up, males are more likely to extend their legs toward the ground, while females may thrash around and try to escape. Males also tend to strut with their chests out and heads in the air.
As they get older, male chicks may start to crow from around 10 to 12 weeks old, although this can start much later. Some sources suggest that female chicks may begin to lay eggs from around 18 weeks old.
It is important to note that these are general trends, and there may be exceptions. The accuracy of sex determination based on behaviour may also depend on the handler's skill level, familiarity with the breed, and the breed of the chicken itself. Some breeds, such as Silkies, may be more difficult to sex accurately, and you may need to wait until they are adults to determine their sex with certainty.
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Size: Males are larger with thicker legs
While newborn chicks all look the same, there are some ways to determine whether a chick is male or female by observing its size. Male chicks tend to grow larger and faster than females, which is often noticeable when they are 3-4 weeks old. Male chicks have larger bodies and heads, and they stand taller, puffing out their chests.
Males also tend to have thicker legs and feet than females. During a growth spurt, male chicks may appear to be all legs for a while, which is less common in female chicks. Male chicks may also have a higher stance, standing with their chests out and heads in the air.
In addition to size, there are other physical differences between male and female chicks. Male chicks have light-coloured heads, while females have dark brown heads. Male chicks also develop larger combs and wattles, which are the fleshy extensions on the facial areas. The comb skin turns red and extends directly above the chicken's head. Female chicks' facial skin stays yellow and unextended until about 10 weeks.
There are also behavioural differences between male and female chicks. Females may appear more nervous and skittish, while males may exhibit more dominant behaviour, such as crowing and chirping.
It is important to note that these are general observations, and there may be some variation between different breeds of chickens. Additionally, chicks mature at different rates, so patience is required when trying to determine their sex.
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Comb and wattle colour: Males have larger, redder combs
Determining the sex of chicks can be difficult because the sex organs of chickens are located inside their bodies. However, there are some breed-specific traits that can help determine the sex of your chicks.
One of these traits is comb and wattle colour. In most cases, a male chick's comb will be brighter and redder than that of a female. The comb and wattles on male chicks usually grow sooner, larger, and turn bright red earlier. On the other hand, female chicks' combs and wattles usually grow in later and become significantly more red and enlarged in the weeks before they start laying eggs.
The comb and wattle method is not as accurate as vent sexing or feather sexing, but it is easier and doesn't require as much skill or practice. If you choose to use this method to sex a chick, you will have to observe the chick as it grows. At a week old or more, their combs will become much more noticeable. A taller, fuller comb on a chick’s head in most cases indicates a male.
It is important to note that the accuracy of sexing chicks varies with age and breed. While some breeds can be sexed accurately at 8-12 weeks of age, others may take less or more time. For example, Silkies cannot be sexed until 5-7 months of age, and even then, it is usually either a crow or an egg that determines the gender.
Additionally, some breeds are considered autosexing, where it is easy to distinguish male vs. female chicks by different physical features or markings, even when they are young. Examples of autosexing breeds include Dorkings, Crested Cream Legbars, and Barred Plymouth Rocks.
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Crowing: Males will start to crow at 6-8 weeks old
Telling male chicks from female chicks can be challenging, especially for beginners. One tell-tale sign that a chick is male is that he will start to crow. Male chicks usually start exercising their vocal cords and attempting to crow as early as 6 to 8 weeks old. A respectable crow, however, may not be heard until the rooster is 4 to 5 months old.
While crowing is a definitive sign of a male chick, there are other ways to determine the sex of a chick before this time. One method is to observe the behaviour of the chicks. Male chicks tend to be bolder and less skittish, and are more likely to bully their peers. They may also issue warning chirps in response to loud noises, while females will usually stay silent and run away. When picked up, males are more likely to extend their legs towards the ground, while females may thrash around and try to escape.
Physical characteristics can also be indicative of a chick's sex. Males tend to grow larger and faster than females, with thicker legs, and may have larger, redder combs and wattles. Males may also develop hackle or saddle feathers, and some breeds may exhibit an arched or longer tail. Males may also sprout feathers faster, and their wing feathers are often uniform in length, while females have wing feathers of varying sizes.
Vent sexing, performed by a professional, is another way to determine the sex of a chick. This method involves examining the chick's anal vent, where waste comes out. If there is a bump in the vent, the chick is likely male. However, this method can be delicate and should only be performed by a trained professional to avoid hurting or damaging the chick.
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Frequently asked questions
It can be challenging to determine the gender of a chick, especially for beginners. One of the most accurate ways to determine the sex of a chick is through vent sexing, which involves examining the chick's anal vent. However, this method should only be performed by trained professionals as it can harm the chick if done incorrectly. Some other ways to distinguish between male and female chicks include observing differences in physical features, behaviour, and feather growth.
Male chicks tend to have larger bodies, thicker legs, and more uniform wing feathers that are longer than those of female chicks. Male chicks may also develop hackle or saddle feathers, and their combs and wattles are typically larger and redder than those of females. Additionally, some breeds exhibit sexual dimorphism, with distinct colour patterns or markings that differ between males and females.
Male chicks tend to be more active and bold, and dominant, while female chicks may exhibit more submissive tendencies and are more easily frightened by loud noises. Male chicks are also more likely to issue warning chirps when approached, while females tend to stay silent.
