In the male reproductive system the seminal vesicles and prostate are absent. There are two organs that are needed for producing semen.

Testis: Also known as gonads. They are located along the chicken's back above the kidneys. They produce sperm and send it to the vas deferens.

vas deferens: This is also known as the sperm ducts. It stores the sperm. It is a muscular tube that connects from the urethra through the ejaculatory duct.

In the female reproductive system the left ovary and oviduct continue to develop after the embryonic stage.

Infundibulum~ This is the portion of the oviduct that catches the oocyte (fertilization). The oocyte spends 15-17 minutes in here before being directed it to the Magnum.

Magnum ~ The oocyte spends 3 hours in the magnum while the glands in the oviduct produce and secrete a thick albumen forms around the ooctye.

Isthmus ~ The oocyte spends around 75 minutes (1-2 hours) in the isthmus. This is the site where the inner and outer shell membrane of the egg forms.

Uterus/ Shell Gland ~ Here the egg spends 20 hours while the shell forms and pigmentation is added.

Vagina - Segment of the oviduct between the shell gland and cloaca. Sperm are stored in tubal glands at the junction between the vagina and shell gland.

Vent/Cloaca ~ This is an opening which allows the chicken to lay her eggs. This is also the site where the transfer of sperm to egg happens.

Post- ovulatory follicles ~ This is what remains after the ovulation of the oocyte

The Cloacal Kiss is how chickens and other birds mate. They touch their cloacas together, sometimes only for just a few seconds, giving the sperm sufficient time to be transferred from male to female reproductive systems!