Reproductive system of birds The gonads develop from two sources during embryonic development. When the nephric ridges are well established, genital ridges appear on their surface. This tissue forms ...

Additionally, same-sex and multi-sex mating systems have been documented in birds, meaning that relying just on data representing a male-female binary excludes a broader spectrum of reproductive ...

Female birds, including cockatiels, parakeets, and canaries, may lay eggs as part of their reproductive cycle ... can take a heavy toll on a bird’s system. Malnourishment, hormone problems ...