Carrier pigeon

The messenger pigeon is a variety of domestic pigeon (Columba livia domestica) derived from the rock pigeon, selectively bred for its ability to find its way home over extremely long distances. The wild rock pigeon has an innate homing ability, meaning that it will generally return to its nest, (it is believed) using magnetoreception. This made it relatively easy to breed from the birds that repeatedly found their way home over long distances. Flights as long as 1,800 km (1,100 miles) have been recorded by birds in competitive pigeon racing. Their average flying speed over moderate 965 km (600 miles) distances is around 97 km/h (60 miles per hour) and speeds of up to 160 km/h (100 miles per hour) have been observed in top racers for short distances. The messenger pigeon is a variety of domestic pigeon (Columba livia domestica) derived from the rock pigeon, selectively bred for its ability to find its way home over extremely long distances. The wild rock pigeon has an innate homing ability, meaning that it will generally return to its nest, (it is believed) using magnetoreception. This made it relatively easy to breed from the birds that repeatedly found their way home over long distances. Flights as long as 1,800 km (1,100 miles) have been recorded by birds in competitive pigeon racing. Their average flying speed over moderate 965 km (600 miles) distances is around 97 km/h (60 miles per hour) and speeds of up to 160 km/h (100 miles per hour) have been observed in top racers for short distances. Because of this skill, messenger pigeons were used to carry messages as messenger pigeons. They are usually referred to as 'pigeon post' if used in post service, or 'war pigeon' during wars. Messenger pigeons are often incorrectly categorized as English Carrier pigeons, a breed of fancy pigeons selectively-bred for its distinctively rounded hard wattle. The purpose of using them was to send messages or mails. Male and female pigeons (cocks and hens, respectively) can be differentiated by physical characteristics of the head, beak, height, and breast, though visual identification of sex by physical characteristics alone can be inaccurate. Males usually stand taller, and have larger beaks, crops, wattles, and eye ceres (fleshy growth around the eyes), as well as round heads and thicker napes. Females, on the other hand, tend to be shorter with smaller beaks, wattles, and ceres, as well as flatter heads and fuller breasts. Male and female pigeons show different behaviours. The 'coo' of males is louder and more insistent, especially when courting. Display behaviour also differs between the sexes. Most notably, a male often turns 360 degrees with an inflated crop and a loud 'coo', to show interest in a female or to defend or discourage another pigeon from entering its territory (usually a nesting box), while females almost never turn full circle, but rather do a 270-degree back-and-forth rotational motion. During breeding season, usually during the warmer months, a male pigeon will court the female by puffing out his chest, bobbing his head and strutting in circles around her, all the while cooing his affections. If she accepts, she will allow him onto her back in order to copulate. After mating, the male will build a nest out of gathered sticks in a suitable crevice, while the female watches and makes changes. Urban birds will gladly use a roof on a building. The female will usually lay two eggs. The first egg would be laid late in the evening, and the other egg forty hours after, which will hatch in 17 to 20 days, depending on the weather. Both parents aid in rearing the nestlings. Fledglings usually leave the nest around four to five weeks after hatching. The sport of flying messenger pigeons was well-established as early as 3000 years ago. They were used to proclaim the winner of the Ancient Olympics.Messenger pigeons were used as early as 1150 in Baghdad and also later by Genghis Khan. By 1167 a regular service between Baghdad and Syria had been established by Sultan Nur ad-Din. In Damietta, by the mouth of the Nile, the Spanish traveller Pedro Tafur saw carrier pigeons for the first time, in 1436, though he imagined that the birds made round trips, out and back. The Republic of Genoa equipped their system of watch towers in the Mediterranean Sea with pigeon posts. Tipu Sultan of Mysore (1750–1799) also used messenger on pigeons; they returned to the Jamia Masjid mosque in Srirangapatna, which was his headquarters. The pigeon holes may be seen in the mosque's minarets to this day. In 1818, a great pigeon race called the Cannonball Run took place at Brussels. In 1860, Paul Reuter, who later founded Reuters press agency, used a fleet of over 45 pigeons to deliver news and stock prices between Brussels and Aachen, the terminus of early telegraph lines. The outcome of the Battle of Waterloo was also first delivered by a pigeon to England. During the Franco-Prussian War pigeons were used to carry mail between besieged Paris and the French unoccupied territory. In December 1870, it took ten hours for a pigeon carrying microfilms to fly from Perpignan to Bruxelles. Historically, pigeons carried messages only one way, to their home. They had to be transported manually before another flight. However, by placing their food at one location and their home at another location, pigeons have been trained to fly back and forth up to twice a day reliably, covering round-trip flights up to 160 km (100 mi). Their reliability has lent itself to occasional use on mail routes, such as the Great Barrier Pigeongram Service established between the Auckland, New Zealand, suburb of Newton and Great Barrier Island in November 1897, possibly the first regular air mail service in the world. The world's first 'airmail' stamps were issued for the Great Barrier Pigeon-Gram Service from 1898 to 1908.