Homing pigeon

The homing pigeon is a variety of domestic pigeon (Columba livia domestica) derived from the rock pigeon, selectively bred to find its way home over extremely long distances, using magnetoreception. The wild rock pigeon has an innate homing ability, meaning that it will generally return to its nest and mate. 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 distances is around 80 km/h (50 miles per hour) but speeds of up to 140 km/h (90 miles per hour) have been observed in top racers for short distances.

Their skills made them used to carry messages as carrier pigeons or messenger pigeons. They have been used in many places around the world. They are usually referred as "pigeon post" or "war pigeon" during wars.

Sexual dimorphism

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.

Pawn Stars

Pawn Stars is an American reality television series, shown on History, and produced by Leftfield Pictures. The series is filmed in Las Vegas, Nevada, where it chronicles the daily activities at the World Famous Gold & Silver Pawn Shop, a 24-hour family business opened in 1989 and operated by patriarch Richard "Old Man" Harrison, his son Rick Harrison, Rick's son Corey "Big Hoss" Harrison, and Corey's childhood friend, Austin "Chumlee" Russell. The series, which became the network's highest rated show and the No. 2 reality show behind Jersey Shore, debuted on July 26, 2009.

The series depicts the staff's interactions with customers, who bring in a variety of artifacts to sell or pawn, and who are shown haggling over the price and discussing its historical background, with narration provided by either the Harrisons or Chumlee.

The series also follows the interpersonal conflicts among the cast. One reviewer referencing these conflicts described the show as a version of Antiques Roadshow "hijacked by American Chopper's" Teutul family.TV Guide has offered a similar description, calling the show "one part Antiques Roadshow, a pinch of LA Ink and a dash of COPS".