The Common Kestrel (Falco tinnunculus) is a bird of prey species belonging to the kestrel group of the falcon family Falconidae. It is also known as the European Kestrel, Eurasian Kestrel, or Old World Kestrel. In Britain, where no other brown falcon occurs, it is generally just called "the kestrel". This species occurs over a large range. It is widespread in Europe, Asia, and Africa, as well as occasionally reaching the east coast of North America.
The European Robin (Erithacus rubecula), most commonly known in Anglophone Europe simply as the Robin, is a small insectivorous passerine bird that was formerly classed as a member of the thrush family (Turdidae), but is now considered to be an Old World flycatcher (Muscicapidae). Around 12.5–14.0 cm (5.0–5.5 in) in length, the male and female are similar in colouration, with an orange breast and face lined with grey, brown upperparts and a whitish belly.
The Ortolan, or Ortolan Bunting, Emberiza hortulana, is a bird in the bunting family Emberizidae, a passerine family now separated by most modern authors from the finches, Fringillidae. The bird's common name is French, from the Latin hortulanus, the gardener bird, (from hortus, a garden). A native of most European countries and western Asia the Ortolan migrates in autumn to tropical Africa, returning at the end of April or beginning of May.
The Barn Swallow (Hirundo rustica) is the most widespread species of swallow in the world. A distinctive passerine bird with blue upperparts, a long, deeply forked tail and curved, pointed wings, it is found in Europe, Asia, Africa and the Americas. In Anglophone Europe it is just called the Swallow; in Northern Europe it is the only common species called a "swallow" rather than a "martin". There are six subspecies of Barn Swallow, which breed across the Northern Hemisphere.
The Golden Eagle (Aquila chrysaetos) is one of the best known birds of prey in the Northern Hemisphere. Like all eagles, it belongs to the family Accipitridae. Once widespread across the Holarctic, it has disappeared from many of the more heavily populated areas. Despite being locally extinct or uncommon, the species is still fairly ubiquitous, being present in Eurasia, North America and parts of Africa.
The Osprey (Pandion haliaetus), sometimes known as the sea hawk, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching 60 centimetres (24 in) in length with a 2m wingspan. It is brown on the upperparts and predominantly greyish on the head and underparts, with a black eye patch and wings. The Osprey tolerates a wide variety of habitats, nesting in any location near a body of water providing an adequate food supply.
The Common Blackbird, Turdus merula, is a species of true thrush. It is also called Eurasian Blackbird (especially in North America, to distinguish it from the unrelated New World blackbirds), or simply Blackbird (in areas where it is the only blackbird-like species). It breeds in Europe, Asia, and North Africa, and has been introduced to Australia and New Zealand. It has a number of subspecies across its large range; a few of the Asian subspecies are sometimes considered to be full species.
A debit card (also known as a bank card or check card) is a plastic card that provides an alternative payment method to cash when making purchases. Functionally, it can be called an electronic cheque, as the funds are withdrawn directly from either the bank account, or from the remaining balance on the card. In some cases, the cards are designed exclusively for use on the Internet, and so there is no physical card.
The concept of moment in mathematics evolved from the concept of moment in physics. The nth moment of a real-valued function f(x) of a real variable about a value c is It is possible to define moments for random variables in a more general fashion than moments for real values. See Moments in metric spaces. The moment of a function, without further explanation, usually refers to the above expression with c = 0.
A counter turn is a kind of one-foot turn in figure skating. Unlike three turns and brackets, where the entry and exit edges follow the same curve, in a counter the entry and exit are on opposite curves. When executing a counter, the skater turns outward to the curve of the entry edge, and exits on a curve in the same sense as the turn. Another way to look at it is that a counter is similar to the entry of a bracket turn combined with the exit of a three turn.