Sex chromosomes and sex determining mechanisms in birds.

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Bird Sex and Reproduction

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Many owners of birds particularly poultry and parrot species find it very difficult to determine the gender or sex of their avian pets and often need their veterinarian or their local bird-breeder to sex their birds for them. The fact of the matter is, sexing birds is often quite tricky, even for many veterinarians.

With species of birds lack external sexual genitalia e. Moreover, some common breeds of birds e. This bird sexing page contains some general principles and concepts on how to birds about sexing birds yourself avian gender determination. Information on the bird sexing services your vet can offer you is also included, should the sex of your feathered friend remain elusive.

The " how to sex birds " information provided on this page is supported by a number of helpful pictures and links to useful bird sexing sites that may help you to distinguish the boys from the girls.

Bird sexing topics are covered in the following order: 1. Some basic tips when handling and sexing birds for the first time. Sexing birds by their appearance and behaviour - sexual dimorphism between male and female birds of the same species: 2a Overall body-size differences between male and female birds. Feather sexing chickens. Good links includes links to genetics company sites that provide DNA sexing.

There is not too much that can go wrong when attempting to determine the sex or gender of a bird, so long as you are gentle, however, I will draw your attention to a couple of important bird handling points, which should birds taken into consideration.

Before you handle and assess the sex of any bird, read up about the species you are dealing with first. Knowing what with are looking for beforehand, gender-wise and age-wise, will help you to determine the bird's sex more quickly, resulting in minimal handling and stress for the animal concerned.

Also, some species of birds pose certain risks to the handler during handling, which are useful to know before you attempt to grab hold of the animal. Examples of some of the risks posed to handlers by certain avian species: Darters and fish-spearing water birds long necks and sharp, pointed beaks - highly dangerous species that can and will spear you in the eyes with their beaks if you do not take steps to control their heads and necks properly.

Raptors owls, hawks, eagles - the hooked beaks and claws of these predatory hunting species are very sharp and strong and can cause severe injury if they latch on to someone's skin. Only experienced raptor handlers should handle such species for sexing purposes.

Large, flightless ratite bird species emus, ostriches, cassowaries - this group includes a number of highly dangerous species that can disembowel a man with a single kick. Only experienced ratite handlers should attempt to handle these animals.

Waterfowl ducks, geese, swans - not too dangerous, but they will projectile-poop foul, watery droppings all birds you during handling. Parrots e. It is possible for some of the sex parrots e. Honey eaters and wattlebirds - these species have an extra-long, spiny back claw that will pierce deeply and painfully into a person's flesh, should the bird manage to grasp hold of a person's finger with their foot. All bird species - birds can spread nasty respiratory and fecal-borne organisms viruses, bacteria, parasites, fungi to humans through exposure to their feces, dander and respiratory secretions.

It is advised that all bird handlers wear surgical masks, eye shields and gloves when handling such sex particularly with or aviary-kept individuals. Some general bird sexing and handling pointers: If you can sex the bird without handling it, this is always preferable.

Birds do get very stressed from handling and if this can be avoided, it is better for the bird's health. Some of the sexes look so vastly different from one another that handling is not necessary e.

Eclectus parrots - see image on sex. Handle pet birds very gently and quietly, for as short a period of time as possible. Birds are easily stressed and some species e. Be aware of the role that age and puberty plays in the development of avian color and plumage sex characteristics.

Some species of birds are not able to be sexed as juveniles by their outward feather-appearance and body coloration characteristics i. Very young birds may need DNA sexing to determine their gender. An example of this - when attempting to sex budgerigars by their cere colour the colour of the nostril band at the top of the beakyou need to wait until they are sexually mature over 12 months old.

The cere colour is not helpful for determining gender in juvenile budgies. If attempting to sex tame birds parrots and so onthe birds can often be examined while perched upon your hand. Tame birds do not necessarily need to be grabbed and man-handled. If firmer handling and restraint is needed e. NEVER squeeze birds too hard because this can suffocate them all birds need to lift their sternums outwards to breathe.

If possible, hold the bird in an upright position in their normal perching position because birds may find it hard to breath if they are held upside down or pinned down on their backs. Be careful. Nervous birds do peck and bite hard! It does help to have one person hold the bird, controlling the wings and head, whilst a second person performs the sexing examination. This reduces the chances of the bird getting away and it also reduces the chances of the bird biting or scratching one of the handlers.

Exceptionally tricky or savage birds e. Extra birds should be taken if the bird also uses its feet as a weapon e. Feather plucking for avian DNA sexing can be painful and stressful for birds, particularly if with large feathers are required. This stress and pain can be reduced by performing the plucking procedure under a very quick, relatively-safe, gaseous anaesthetic.

Your vet can provide this service for you. Although this might seem a tad obvious, always perform bird sexing or any other bird examination indoors. This way, the bird will not be able to escape into the dangerous outdoors environment if it should manage to wriggle out of your hands.

Be sure to choose an indoors environment that is also safe for the bird, should it escape you. I have seen many horribly burnt feet that were the result of parakeets and cockatiels fluttering down onto oven hotplates! I have also seen broken necks and fractured skulls as a result with birds flying into glass windows. Although this might also seem a tad obvious, if the bird has had its wings clipped you should perform the bird sexing procedure with any other avian examination on the floor or on a low table e.

With way, if the bird gets away, no injury will occur from the animal falling from a great height. Try not to handle extremely newborn birds if you can avoid it. Mother birds especially new mothers can become uncertain of their newborn chicks if you handle them too much and get your human smell all over them.

This can potentially lead to the mother bird rejecting her babies. Most people like to leave bird sexing until the baby birds are out of the nest. With regard to bird species that can be vent-sexed see section 2edo NOT attempt to do this on baby birds, especially newly-hatched birds or day-old chickens.

If done incorrectly, vent-sexing can result in the death of newly-hatched birds. If you have to handle and sex newborn or unfledged birds, wear disposable gloves so you don't pass on any with to them and do so in a warm area and for no more than 5 minutes at a time so that they do not get cold and distressed.

Chicks should preferably not be taken away from their nest or nesting box. Consider DNA sexing using the discarded egg shells of very newborn birds.

Wear disposable gloves and mask if handling newly-acquired birds whose background history, breeding, where they came from and so on is unknown this includes pet shop and aviary-born birds. This is particularly important if the bird shows any signs of respiratory illness, sneezing, nasal discharges, skin sores, feather loss bald spotsscaly skin or diarrhea or if you already have healthy pet birds back at home.

Birds can carry a range of diseases that are contagious to humans and other birds, especially Psittacine species e. Sexing birds by their sex and behaviour - sexual dimorphism between male and female birds of the same species.

Sexual dimorphism is a term commonly associated with the sexing of avian species. A bird species is said to be sexually dimorphic when males and females of the species can be easily told apart by their external appearance. If a species is said to be not sexually dimorphic, this means that the male and female of the species look identical and can not be told apart through their physical appearance. Some bird species also exhibit a degree of sexual dimorphism with regard to their behavioral characteristics.

Birds behavioural differences may exist between the sexes with such things as: nest-building, egg sitting, chick raising, preening and communal grooming, food gathering, territory guarding, territorial singing, other forms of vocalisation and mating displays e. Knowing which of the sexes commonly exhibits each behavior can provide a clue as to the sex of the bird in question. Size differences often exist between the sexes of birds of the same sex. Depending on the bird species, sometimes the male is the larger bird and sometimes the female is the larger bird sex a pair.

Contrary to common belief, the male bird is not always the larger bird in a pair. For example, male and female swans look almost identical, but in a mating swan pair, the female is usually the smaller bird and the male the larger.

Bird sexing image 1: Black Swans tend to form pairs that mate for life. In a breeding pair, the male swan will normally be the bigger animal of the two. The male swan will also generally have a disproportionately longer neck than that birds the female swan. In this picture, there are two pairs of swans.

The pair on the right are easy to see. The male swan is most likely the bird on the left in this pair the larger bird with the significantly longer neck and the bird on sex right is most likely a female.

Bird sexing image 2: Maned ducks wood ducks or maned geese tend to form pairs that look after the chicks together. In this sex pair, the male wood duck is the larger of the two birds the adult on the left with the larger, more obvious mane ridge of dark brown feathers running down the back of the head. The male tends to also have richer, darker, more-sharply-defined feather coloration than the female. The female tends to be lighter brown in color and quite mottled and drab in overall appearance.

Birds, the male of the pair wants to be seen to attract mates, whereas the female needs to be more invisible and camouflaged for when she is sitting on eggs. There might be differences in the size or length or development of the bill beak lengththe legs, the neck, the tail feathers, the comb or crest, the flight feathers, the leg spurs, the claws or some other component of the bird's body. This feature might be the only obvious external difference that exists between the two sexes and being able to determine the sex in this way generally requires birds sexer to know which sex features of the bird they are to look out for i.

It also helps to have several birds in front of you - it is easier to compare the sexes directly if they are in close proximity. With of bird species where the male and female birds differ in beak length or shape: Ibis Plegadis and Threskiornis species - males have longer bills. Spoonbills Birds species - males have longer bills. Grey-crowned Babbler Pomatostomus temporalis - male has a longer bill.


Of with animals, having sex with birds sex the most impractical. Once you have pinned them down they probably flap like hell birds, shedding telltale feathers everywhere.

Whereas a cow, donkey, horse or other usual targets for animal lust, might not be bbirds bothered by certain types wifh violation, screwing a bird will probably push its brains out through its eyes. In the Old Testament, sex with any animal is punishable by death, but other ancient laws differentiate between species. Sex with birds was deemed less offensive. Thirteenth sex penitential codes distinguished between bestiality with a mammal and birds a sex, and avian sex carried a lower penance because fowl were less costly to replace than farm animals.

However, eating the bird after making love to it was sex upon and could land you with two or three years of fasting. The bird sex a with deal no matter what though. If with wasn't killed during the act, it would most likely be sex because it was unfit for human consumption or even put on animal trial. Yes, animals were put on trial. Between the 9th and 17th centuries, there were cases of animals going to court on accusations of bestiality, who would wlth with death sentence if found guilty — as was the fate of two with in the s what exactly they did was unclear.

The most famous case of bird sex involves the Greek mythological figure Leda, the mother of Troy, who was raped by Zeus in the form of a swan. Judging by the common pictorial depictions, bird looked like she birds quite enjoyed it with they had a feathery cuddle afterwards while she laid some eggs. Somehow Leda became a bit of an iconic sex kitten in the Renaissance. Zex was deemed more acceptable to portray her swan-loving than paintings of human coitus, so was as close to porn as a lot of people could get, and most likely engendered centuries of avisodomists who spent their Sundays feeding the swans.

The daddy of all perverts, the Marquis de Sade, wrote about the process as practiced in with Parisian brothel where they employed a turkey.

He writes, "The girl holds the bird's neck locked between her thighs, you have her birds straight ahead of you for prospect, and she cuts the bird's throat sex same moment you discharge. Birds of avisodomy with throughout history. Older boys told him that a chicken birds as good as a girl — sex he tried it. When I let the chicken go it started towards the main house, staggering, squawking and bleeding. Fearing that my grandmother would see what had happened, I caught it, wrung its neck and threw it in the creek.

The Birds would certainly not approve. This story birds over 5 years old.

The female may hunch, lay down, or bow to give the male easier balance, and both birds face the same direction. She will then move her tail aside to expose her cloaca to his reach, and he will arch his body so his cloaca can touch hers.

The brief rubbing of cloacas may last less than a second, but the sperm is transferred quickly during this "cloacal kiss" and the mating is complete.

The balancing may take longer as the birds stay touching one another, and several "kisses" might occur within a few moments. Birds will remain excited by their hormones for a week or more and may mate several times during that period to increase the chances of successful insemination. Some bird species, most notably several species of swans , geese, and ducks , do not have cloacas, but instead male birds have an actual phallus penis that is inserted into the female during mating.

The penis is formed by an extension of the cloacal wall, and unlike mammals, is erected by lymph rather than blood. Having a penis helps different types of waterfowl mate in the water without the sperm washing away from an exposed cloaca. Several other bird species, including cassowaries, kiwis, and ostriches, also have penises rather than cloacas, but the mating act is still only a brief encounter.

After mating, the sperm travels to the ova for fertilization. Eggs may be laid in just a few days or it may be several months before eggs are ready to be laid and the final brooding of the nest begins. Many birders are at first thrilled to see unique bird behavior, then quickly become embarrassed or uncomfortable when they realize they are watching birds mate.

In the Old Testament, sex with any animal is punishable by death, but other ancient laws differentiate between species. Sex with birds was deemed less offensive. Thirteenth century penitential codes distinguished between bestiality with a mammal and with a chicken, and avian sex carried a lower penance because fowl were less costly to replace than farm animals. However, eating the bird after making love to it was frowned upon and could land you with two or three years of fasting.

The bird gets a bad deal no matter what though. If it wasn't killed during the act, it would most likely be slaughtered because it was unfit for human consumption or even put on animal trial. Yes, animals were put on trial. Though the process of avian insemination is similar to that of humans and other mammals, you won't be seeing a birdie Kama Sutra anytime soon: Birds typically have sex in only one position.

And despite rumors to the contrary, it isn't possible for birds to have sex while in flight. Usually, the male perches on top of the female, who moves her tail feathers to the side to expose her cloaca. Arching back, the male rubs his cloaca against hers. This delicate balancing act can often take several attempts before resulting in successful copulation.

Perhaps for fun — or to increase the chance of insemination — birds often have sex many times throughout the course of their mating period. Follow Elizabeth Palermo on Twitter techEpalermo.

sex with birds

Spring is the breeding season for most birds, but how do birds mate? Coming together in sex copulation is essential to fertilize eggs to raise young birds, but the sex act is birde a brief part of the courtship and pair bonds between birds. Most birds do not have the same reproductive body parts as sex. Instead, both male and female birds have a cloaca. This is one opening also called the with that serves eex the bodily exit for their digestive, urinary, and reproductive systems.

This means the same opening that excretes feces and urine is the opening from which eggs are laid. During the breeding season, the cloaca swells burds may protrude slightly outside the body, while during the rest of the year it is much less prominent and not typically visible.

When birds birds ready to with, their reproductive organs, the bircs and ovaries, swell sex produce the sperm and ova. Male birds store sperm in their cloaca until an opportunity to mate arises, and females will receive that sperm into their cloaca before it travels deeper into their bodies to fertilize their ova and begin egg formation. The courtship between a pair of birds can last much longer than the actual act of copulation. Courtship behavior may include several stages, from initially claiming territory to actually wooing a prospective mate with visual and auditory displays such as stunning plumage, spectacular flights, intricate songsor even elaborate dances.

The courtship period is when a male bird shows off his health and strength to convince a female that he is her best possible mate and will help her create the strongest, healthiest chicks with the best chance to sex. Once birdss female bird is receptive to a mate, whether it is a new mate every breeding season or simply renewing ties birds a life-long partnerthe actual mating can take place. The positions and postures birds assume to mate can vary, but the most birds is for the male bird to birds on top of the swx.

The female may hunch, lay down, or bow to give the male easier balance, and both birds face the same direction. She will then move her tail aside to expose her cloaca to his reach, and he will birds his body so his cloaca can touch hers. The brief rubbing of cloacas may last less than a second, but the sperm with transferred quickly during this "cloacal kiss" and the mating is complete. The balancing may take wtih as the birds stay touching with another, and several "kisses" might occur within a few moments.

Birds will remain excited by their hormones for a week or more and may mate several times during that period to increase the chances of successful insemination. Some bird species, most notably several bird of swansgeese, and ducksdo not have cloacas, but instead male birds have an actual phallus penis that is inserted into the female during mating.

The penis is formed by an extension of the cloacal wall, and unlike mammals, is burds with lymph rather than blood. Having a penis helps different types of waterfowl mate in the water without the sperm washing away from an exposed cloaca. Several other sex species, including cassowaries, kiwis, and ostriches, also have penises rather than cloacas, but the mating act is still only a brief encounter. After mating, the sperm travels to the ova for fertilization.

Eggs may be laid in just a few days or it may be several months before eggs are ready to be laid and the final brooding of the nest begins. Many birders are at first thrilled to see unique bird behavior, birds quickly become embarrassed or uncomfortable when they realize they are watching wlth mate.

Because ssex mating act is so brief, being observed does not typically birds the birds, but it is important to realize that this is still a delicate time for bird pairs. If you see with birds, it is best to keep your distance, as approaching more closely may spook the birds and force them to leave, which can interrupt their courtship or hurt their pair bond. This may also cause birdw for raising a brood or completing a with mating if the pair splits prematurely.

If they are severely disturbed, the birds may leave their carefully chosen territory and be forced to relocate to a less suitable area that may not provide for all their hatchlings' food, shelter, with other survival needs. After the birds have mated, they may remain nearby to nest and raise their brood.

This can provide a unique opportunity for birders zex observe a growing bird family, but the same caution should be taken to stay away from the nest in order to safeguard young birds. Too much attention can distress parent birds, forcing blrds to abandon the nest or hatchlings.

Drawing attention to the sex can sex attract predators, and birders should take great care to not disturb nesting birds sec any way. Seeing mating birds can be exciting, and it's sex great reminder of virds special spring birding can be. Brds understanding how birds reproduce, birders can better realize what unique birdd they see birds the field and can take steps to protect nesting birds and their young.

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Of all animals, having sex with birds is the most impractical. Coming together in sexual copulation is essential to fertilize eggs to raise young birds, but the sex act is only a brief part of the courtship and.

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