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Chipping Sparrow
The chipping sparrow (''Spizella passerina'') is a species of New World sparrow, a passerine bird in the family Passerellidae. It is widespread, fairly tame, and common across most of its North American range. There are two subspecies, the eastern chipping sparrow and the western chipping sparrow. This bird is a partial migrant with northerly populations flying southwards in the fall to overwinter in Mexico and the southern United States, and flying northward again in spring. It molts twice a year. In its breeding plumage it has orangish-rust upper parts, gray head and underparts and a distinctive reddish cap. In non-breeding plumage, the cap is brown and the facial markings are less distinct. The song is a trill and the bird has a piercing flight call that can be heard while it is migrating at night. In the winter, chipping sparrows are gregarious and form flocks, sometimes associating with other bird species. They mostly forage on the ground for seeds and other food items, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Matthäus Bechstein
Johann Matthäus Bechstein (11 July 1757 – 23 February 1822) was a German naturalist, forester, ornithologist, entomologist, and herpetologist. In Great Britain, he was known for his treatise on singing birds (''Naturgeschichte der Stubenvögel'', ''Natural History of Cage Birds'', 1795). Biography Bechstein was born in Waltershausen in the district of Gotha in Thuringia. He studied theology for four years at the University of Jena, and spent time hunting and roaming the forests as opportunities permitted. After leaving school, he taught for some years, but gave teaching up to devote himself to outdoor pursuits. In 1795, he founded the school of forestry at Waltershausen, and in 1800, the Duke of Saxe-Meiningen made him the director of the forestry school at Dreissigacker near Meiningen in the neighbouring district of Schmalkalden-Meiningen. After the death of his own son, Bechstein adopted his nephew Ludwig Bechstein. Bechstein was a prolific zoologist and one of the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Grackle
The common grackle (''Quiscalus quiscula'') is a species of large icterid bird found in large numbers through much of North America. First described in 1758 by Carl Linnaeus, the common grackle has three subspecies. Adult common grackles have a long and dark bill, pale yellow eyes, and a long tail. Adults often have an iridescent appearance on their head, especially males. Common grackles can be found widely across North America east of the Rocky Mountains. Taxonomy The common grackle was first described in 1758 by Carl Linnaeus in the tenth edition of ''Systema Naturae'', as ''Gracula quiscula''. It was assigned to the genus ''Quiscalus'' by French ornithologist Louis Jean Pierre Vieillot in his 1816 ''Dictionnaire d'histoire naturelle''. Three subspecies are recognized: *the Florida grackle (''Q. q. quiscula'') (Linnaeus 1758), the nominate subspecies *the purple grackle (''Q. q. stonei'') (Chapman, 1935) *the bronzed grackle (''Q. q. versicolor'') (Vieillot, 1816) Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fallopia Convolvulus
''Fallopia convolvulus'', the black-bindweed or wild buckwheat, is a fast-growing annual flowering plant in the family Polygonaceae native throughout Europe, Asia and northern Africa.Flora of NW Europe''Fallopia convolvulus''/ref>Flora of China''Fallopia convolvulus''/ref>Flora of Pakistan''Fallopia convolvulus''/ref>Blamey, M. & Grey-Wilson, C., 1989. ''Flora of Britain and Northern Europe''. . Synonyms include ''Polygonum convolvulus'' L. (basionym), ''Bilderdykia convolvulus'' (L.) Dumort, ''Fagopyrum convolvulus'' (L.) H.Gross, ''Fagopyrum carinatum'' Moench, ''Helxine convolvulus'' (L.) Raf., ''Reynoutria convolvulus'' (L.) Shinners, and ''Tiniaria convolvulus'' (L.) Webb & Moq. Other old folk names include bear-bind, bind-corn, climbing bindweed, climbing buckwheat, corn-bind, corn bindweed, devil's tether, and wild buckwheat. Description Black-bindweed is a herbaceous vine growing to long, with stems that twine clockwise round other plant stems. The alternate triangular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taraxacum Officinale
''Taraxacum officinale'', the dandelion or common dandelion, is a flowering herbaceous perennial plant of the dandelion genus in the family Asteraceae (syn. Compositae). The common dandelion is well known for its yellow flower heads that turn into round balls of many silver-tufted fruits that disperse in the wind. These balls are usually called "clocks" in both British and American English. The name "blowball" is also used. The common dandelion grows in temperate regions of the world in areas with moist soils. It is most often considered a weed, especially in lawns and along roadsides, but the leaves, flowers, and roots are sometimes used in herbal medicine and as food. Description ''Taraxacum officinale'' grows from (generally unbranched) taproots and produces several hollow, leafless flower stems that are typically tall, but sometimes up to tall. The stems can be tinted purplish, they are upright or lax, and produce flower heads that are held as tall or taller than the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clutch (eggs)
__NOTOC__ A clutch of eggs is the group of eggs produced by birds, amphibians, or reptiles, often at a single time, particularly those laid in a nest. In birds, destruction of a clutch by predators (or removal by humans, for example the California condor breeding program) results in ''double-clutching''. The technique is used to double the production of a species' eggs, in the California condor case, specifically to increase population size. The act of putting one's hand in a nest to remove eggs is known as "dipping the clutch". Size Clutch size differs greatly between species, sometimes even within the same genus. It may also differ within the same species due to many factors including habitat, health, nutrition, predation pressures, and time of year. Clutch size variation can also reflect variation in optimal reproduction effort. In birds, clutch size can vary within a species due to various features (age and health of laying female, ability of male to supply food, and abundan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas
Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by both List of U.S. states and territories by area, area (after Alaska) and List of U.S. states and territories by population, population (after California). Texas shares borders with the states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexico, Mexican States of Mexico, states of Chihuahua (state), Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south and southwest; and has a coastline with the Gulf of Mexico to the southeast. Houston is the List of cities in Texas by population, most populous city in Texas and the List of United States cities by population, fourth-largest in the U.S., while San Antonio is the second most pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sparrow At Feeder Portrait
Sparrow may refer to: Birds * Old World sparrows, family Passeridae * New World sparrows, family Passerellidae * two species in the Passerine family Estrildidae: ** Java sparrow ** Timor sparrow * Hedge sparrow, also known as the dunnock or hedge accentor in the family Prunellidae People * Sparrow (surname) * Sparrow (American poet) (born 1953), American poet, activist, musician, and rabble-rouser * Alex Sparrow, also known as Alexey Vorobyov (born 1988), Russian singer and actor * Robert Brown (footballer, born 1856), Scottish footballer known by the nickname 'Sparrow' * The Little Sparrow (La Môme Piaf), the nickname of French singer Édith Piaf (1915 –1963) Media Films * ''The Sparrow'' (1914 film), a 1914 French silent film * ''Sparrows'' (1916 film), a Dutch film * ''Sparrows'' (1926 film), starring Mary Pickford * ''The Sparrow'' (1972 film), Arabic title ''Al Asfour'', a 1972 Egyptian film by director Youssef Chahine * ''Sparrow'' (1993 film), a 1993 Italian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Molecular Evolution
The ''Journal of Molecular Evolution'' is a monthly peer-reviewed scientific journal that covers molecular evolution. It is published by Springer Science+Business Media and was established in 1971. The founding editor was Emile Zuckerkandl, who remained editor-in-chief until the late 1990s. In 1994, the journal became associated with the then existent International Society of Molecular Evolution. Scope In a 1998 editorial, Zuckerkandl stated that he wanted the journal to "insure that this field be covered in its broadest sense" by publishing research that is of broad interest to the field of molecular evolution that it helped define, as well as to biology in general. To this end, Zuckerkandl stated that the journal does not cover research either on practical applications of molecular evolution, or articles "whose focus is very restricted and that do not lead to valuable insights beyond their narrow topic". However, he looked forward to coverage of new, rapidly developing areas of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passeridae
Old World sparrows are a group of small passerine birds forming the family Passeridae. They are also known as true sparrows, a name also used for a particular genus of the family, ''Passer''. They are distinct from both the New World sparrows, in the family Passerellidae, and from a few other birds sharing their name, such as the Java sparrow of the family Estrildidae. Many species nest on buildings and the house and Eurasian tree sparrows, in particular, inhabit cities in large numbers. They are primarily seed-eaters, though they also consume small insects. Some species scavenge for food around cities and, like gulls or pigeons, will eat small quantities of a diversity of items. Description Generally, Old World sparrows are small, plump, brown and grey birds with short tails and stubby, powerful beaks. The differences between sparrow species can be subtle. Members of this family range in size from the chestnut sparrow (''Passer eminibey''), at and , to the parrot-billed spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arid
A region is arid when it severely lacks available water, to the extent of hindering or preventing the growth and development of plant and animal life. Regions with arid climates tend to lack vegetation and are called xeric or desertic. Most arid climates straddle the Equator; these regions include parts of Africa, Asia, South America, North America, and Australia. Change over time The distribution of aridity at any time is largely the result of the general circulation of the atmosphere. The latter does change significantly over time through climate change. For example, temperature increase by 1.5–2.1 percent across the Nile Basin over the next 30–40 years could change the region from semi-arid to arid, significantly reducing the land usable for agriculture. In addition, changes in land use can increase demands on soil water and thereby increase aridity. See also * Arid Forest Research Institute * Aridity index * Desert climate * Desiccation tolerance * Drought * Hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whether ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithologist
Ornithology is a branch of zoology that concerns the "methodological study and consequent knowledge of birds with all that relates to them." Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support. Studies on birds have helped develop key concepts in biology including evolution, behaviour and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, island biogeography, phylogeography, and conservation. While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to very specific questions, often using birds as models to test hypotheses or predictions based on theories. Most modern biological theories apply across life forms, and the number of scientists who i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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