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The rock dove, rock pigeon, or common pigeon (/ ˈ p ɪ dʒ. ə n / also / ˈ p ɪ dʒ. ɪ n /; Columba livia) is a member of the bird family Columbidae (doves and pigeons). [3]: 624 In common usage, it is often simply referred to as the "pigeon", although this is the wild form of the bird; the pigeons most familiar to people are the domesticated form of the wild rock dove.
Female birds are able to produce more of a certain gender of birds that are more likely to survive under extreme conditions. In birds, the females' egg determines the gender of the offspring, not the male's sperm. In zebra finches, a study showed the effect of food on gender ratio production. For females, egg production is a metabolically ...
The oviduct in vertebrates is the passageway from an ovary. In human females, this is more usually known as the fallopian tube. The eggs travel along the oviduct. These eggs will either be fertilized by spermatozoa to become a zygote, or will degenerate in the body. Normally, these are paired structures, but in birds and some cartilaginous ...
Most birds have approximately 175 different muscles, mainly controlling the wings, skin, and legs. Overall, the muscle mass of birds is concentrated ventrally. The largest muscles in the bird are the pectorals, or the pectoralis major, which control the wings and make up about 15–25% of a flighted bird's body weight.
The domestic pigeon (Columba livia domestica or Columba livia forma domestica) [2] is a pigeon subspecies that was derived from the rock dove or rock pigeon. The rock pigeon is the world's oldest domesticated bird. Mesopotamian cuneiform tablets mention the domestication of pigeons more than 5,000 years ago, as do Egyptian hieroglyphics.
Feral pigeons (Columba livia domestica or Columba livia forma urbana), also called city doves, city pigeons, or street pigeons, [ 1 ][ 2 ] are descendants of domestic pigeons (Columba livia domestica) that have returned to the wild. [ 3 ] The domestic pigeon was originally bred from the wild rock dove, which naturally inhabits sea-cliffs and ...
Columba argentina Bonaparte, 1855 (possibly extinct) OR: western Malaysia. 25. Andaman wood pigeon. Columba palumboides (Hume, 1873) OR: Andaman and Nicobar Islands. 26. Japanese wood pigeon. Columba janthina Temminck, 1830.
This article focuses on people who were born with a female reproductive system and people with vaginas. ... (BV) is a common type of vaginal infection. Symptoms include increased vaginal discharge ...