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In this list of birds by common name 11,278 extant and recently extinct (since 1500) bird species are recognised. [1] Species marked with a "†" are extinct.
Vocal Bird anatomy: Birds produce sounds through the air that passes through the Syrinx, which is shown close up in the bottom right. In order for birds to produce sound, they use an organ located above the lungs called the syrinx , which is composed of tracheal rings, syringeal muscles, Tympaniform membrane, and internal bony structures that ...
Pages in category "Bird anatomy" The following 66 pages are in this category, out of 66 total. This list may not reflect recent changes. ...
In the female cat, the genitalia includes the uterus, the vagina, the genital passages and teats. [dubious – discuss] Together with the vulva, the vagina of the cat is involved in mating and provides a channel for newborns during parturition, or birth. The vagina is long and wide. [35] Genital passages are the oviducts of the cat. They are ...
Male birds have two Z chromosomes (ZZ), and female birds have a W chromosome and a Z chromosome (WZ). [78] A complex system of disassortative mating with two morphs is involved in the white-throated sparrow Zonotrichia albicollis , where white- and tan-browed morphs of opposite sex pair, making it appear as if four sexes were involved since any ...
Birds (class Aves) – winged, bipedal, endothermic (warm-blooded), egg-laying, vertebrate animals. There are around 10,000 living species, making them the most varied of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic, to the Antarctic.
Lisa, a German native now residing in Michigan, continues to share photos and videos of wildlife that comes to feed in her backyard. Most of the visitors are a wide variety of local birds, but ...
Bird ringing is the term used in the UK and in some other parts of Europe, while the term bird banding is more often used in the U.S. and Australia. [49] bird strike The impact of a bird or birds with an airplane in flight. [50] body down The layer of small, fluffy down feathers that lie underneath the outer contour feathers on a bird's body. [51]