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Elegant Crested Tinamou
The elegant crested tinamou or martineta tinamou (''Eudromia elegans'') is a medium-sized tinamou that can be found in southern Chile and Argentina in Shrubland. The bird has an omnivorous diet. This species is terrestrial due to their poor flying ability. Description The elegant-crested tinamou is a partridge-like shaped bird with rounded wings. The bird is an olive-brown color with the plumage being mainly black and white vermiculations. The bird has a long off-white stripe that starts above the eye and continues down the side of the neck. The beak is short, comes to a sharp upright point. The species legs and feet are short and strong, built for running. Both of those features have a whitish-grey coloring. The elegant-crested tinamou averages 39 to 41 cm (15–16 in) long. They can be found in flocks of about 5-10 birds, and are often detected by whistle calls. Habitat The elegant crested tinamou avoids tall and dense grasses and very thick stands of brush. Ideal envi ...
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Bronx Zoo
The Bronx Zoo (also historically the Bronx Zoological Park and the Bronx Zoological Gardens) is a zoo within Bronx Park in the Bronx, New York City. It is one of the largest zoos in the United States by area and the largest Metropolis, metropolitan zoo, comprising of park lands and naturalistic habitats separated by the Bronx River. The zoo has 2.1 million average yearly visitors . The zoo's original buildings, known as Astor Court, were designed as a series of Beaux-Arts architecture, Beaux-Arts pavilions grouped around the large circular sea lion pool. The Rainey Memorial Gates were designed by sculptor Paul Manship in 1934 and listed on the National Register of Historic Places in 1972. The zoo opened on November 8, 1899, featuring 843 animals in 22 exhibits. Its first director was William Temple Hornaday, who served for 30 years. From its inception the zoo has played a vital role in animal conservation. In 1905, the American Bison Society was created in an attempt to save th ...
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Plumage
Plumage () is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, there can be different colour morph (zoology), morphs. The placement of feathers on a bird is not haphazard but rather emerges in organized, overlapping rows and groups, and these are known by standardized names. Most birds moult twice a year, resulting in a breeding or ''nuptial plumage'' and a ''basic plumage''. Many ducks and some other species such as the red junglefowl have males wearing a bright nuptial plumage while breeding and a drab ''eclipse plumage'' for some months afterward. The painted bunting's juveniles have two inserted moults in their first autumn, each yielding plumage like an adult female. The first starts a few days after fledging replacing the ''juvenile plumage'' with an ''auxiliary formative plumage''; the second a month o ...
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Flocking (behavior)
Flocking is the behavior exhibited when a group of birds, called a flock, are foraging or in flight. Sheep and goats also exhibit flocking behavior. Flocking by birds and mammals is similar to schooling in fish and these are often studied together. Flocking is generally believed to arise from the need for cover and protection from predators in animal behavior. This is an emergent behaviour governed by local rules that are followed by individuals and does not involve any central coordination. In nature There are parallels with the shoaling behaviour of fish, the swarming behaviour of insects, and herd behaviour of land animals. During the winter months, starlings are known for aggregating into huge flocks of hundreds to thousands of individuals, murmurations, which when they take flight altogether, render large displays of intriguing swirling patterns in the skies above observers. Measurement Measurements of bird flocking have been made using high-speed cameras, and a ...
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Egg Incubation
Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg. Multiple and various factors are vital to the incubation of various species of animal. In many species of reptile for example, no fixed temperature is necessary, but the actual temperature determines the sex ratio of the offspring. In birds, the sex of offspring is genetically determined, but in many species a constant and particular temperature is necessary for successful incubation. Especially in poultry, the act of sitting on eggs to incubate them is called brooding. The action or behavioral tendency to sit on a clutch of eggs is also called broodiness, and most egg-laying breeds of poultry have had this behavior selectively bred out of them to increase production. Avian incubation A wide range o ...
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Parasitism
Parasitism is a close relationship between species, where one organism, the parasite, lives (at least some of the time) on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson characterised parasites' way of feeding as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: ...
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Dust Bathing
Dust bathing (also called sand bathing) is an animal behavior characterized by rolling or moving around in dust, dry earth or sand, with the likely purpose of removing parasites from fur, feathers or skin. Dust bathing is a Comfort behaviour in animals, maintenance behavior performed by a wide range of mammalian and bird, avian species. For some animals, dust baths are necessary to maintain healthy feathers, skin, or fur, similar to bathing in water or Wallowing in animals, wallowing in mud. In some mammals, dust bathing may be a way of transmitting Scent marking, chemical signals (or pheromones) to the ground which marks an individual's Territory (animal), territory. Birds Birds crouch close to the ground while taking a dust bath, vigorously wriggling their bodies and flapping their wings. This disperses loose substrate into the air. The birds spread one or both wings which allows the falling substrate to fall between the feathers and reach the skin. The dust bath is ofte ...
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Roost Site
Roost may refer to: Animal resting * Human to rest or sleep. * Roosting, resting behavior of birds * Communal roosting, a behavior of some birds and other animals * Monarch butterfly roosts, communal resting sites in monarch butterfly migration * Bat roost, a list of places where bats roost Other uses * Roost Records, an American jazz record label * Roost Books, an imprint of Shambhala Publications * Roost Shared Storage, an American self-storage company acquired by the Australian company Spacer * ''The Roost'', a 2005 American horror film * The Roost (podcast network) Rooster Teeth Productions, LLC was an American entertainment company headquartered in Austin, Texas. Founded in 2003 by Burnie Burns, Matt Hullum, Geoff Ramsey, Jason Saldaña, Gus Sorola, and Joel Heyman, Rooster Teeth was a subsidiary of W ..., a division of Rooster Teeth Productions * The Roost (Washington), a mountain in Washington state, US See also * Jan Van der Roost (born 1956), Belgian composer ...
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Abundant Number
In number theory, an abundant number or excessive number is a positive integer for which the sum of its proper divisors is greater than the number. The integer 12 is the first abundant number. Its proper divisors are 1, 2, 3, 4 and 6 for a total of 16. The amount by which the sum exceeds the number is the abundance. The number 12 has an abundance of 4, for example. Definition An ''abundant number'' is a natural number for which the Divisor function, sum of divisors satisfies , or, equivalently, the sum of proper divisors (or aliquot sum) satisfies . The ''abundance'' of a natural number is the integer (equivalently, ). Examples The first 28 abundant numbers are: :12, 18, 20, 24, 30, 36, 40, 42, 48, 54, 56, 60, 66, 70, 72, 78, 80, 84, 88, 90, 96, 100, 102, 104, 108, 112, 114, 120, ... . For example, the proper divisors of 24 are 1, 2, 3, 4, 6, 8, and 12, whose sum is 36. Because 36 is greater than 24, the number 24 is abundant. Its abundance is 36 − 24&nb ...
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Nebraska
Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwest; and Wyoming to the west. Nebraska is the List of U.S. states and territories by area, 16th-largest state by land area, with just over . With a population of over 2 million as of 2024, it is the List of U.S. states and territories by population, 38th-most populous state and the List of states and territories of the United States by population density, eighth-least densely populated. Its List of capitals in the United States, capital is Lincoln, Nebraska, Lincoln, and its List of municipalities in Nebraska, most populous city is Omaha, Nebraska, Omaha, which is on the Missouri River. Nebraska was admitted into the United States in 1867, two years after the end of the American Civil War. The Nebras ...
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Benkelman
Benkelman is a city in and the county seat of Dundy County, Nebraska, United States. As of the 2020 census, the city population was 821. History Benkelman was originally called Collinsville, in honor of Moses Collins, and under that name was founded circa 1880. In 1882, it was renamed Benkelman by the railroad for J. G. Benkelman, a stock raiser. Geography According to the United States Census Bureau, the city has a total area of , all land. Climate Demographics 2010 census As of the census of 2010, there were 953 people, 445 households, and 242 families residing in the city. The population density was . There were 556 housing units at an average density of . The racial makeup of the city was 95.9% White, 0.4% African American, 0.8% Native American, 0.2% Asian, 0.7% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 4.4% of the population. There were 445 households, of which 23.6% had children under the age of 18 living with them, ...
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Agricultural Land
Agricultural land is typically land ''devoted to'' agriculture, the systematic and controlled use of other organism, forms of lifeparticularly the rearing of livestock and production of cropsto produce food for humans. It is generally synonymous with both farmland or cropland, as well as pasture or rangeland. The United Nations Food and Agriculture Organization (FAO) and others following its definitions, however, also use ''agricultural land'' or as a term of art, where it means the collection of: * ''arable land'' (also known as ''cropland''): here redefined to refer to land producing crops requiring annual replanting or fallowland or pasture used for such crops within any five-year period * ''permanent cropland'': land producing crops which do not require annual replanting * ''permanent pastures'': natural or artificial grasslands and shrublands able to be used for grazing livestock This sense of "agricultural land" thus includes a great deal of land not devoted to agricultura ...
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Savanna
A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. Four savanna forms exist; ''savanna woodland'' where trees and shrubs form a light canopy, ''tree savanna'' with scattered trees and shrubs, ''shrub savanna'' with distributed shrubs, and ''grass savanna'' where trees and shrubs are mostly nonexistent.Smith, Jeremy M.B.. "savanna". Encyclopedia Britannica, 5 Sep. 2016, https://www.britannica.com/science/savanna/Environment. Accessed 17 September 2022. Savannas maintain an open canopy despite a high tree density. It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in forests.Manoel Cláudio da ...
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