Periquita , also known as Castelão and João de Santarém, is a red wine

Wine

Wine is an alcoholic beverage, made of fermented fruit juice, usually from grapes. The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast...

 grape found primarily in the south coastal regions but is grown all over Portugal and is sometimes used in Port wine

Port wine

Port wine is a Portuguese fortified wine produced exclusively in the Douro Valley in the northern provinces of Portugal. It is typically a sweet, red wine, often served as a dessert wine, and comes in dry, semi-dry, and white varieties...

 production. The name is derived from the Portuguese

Portuguese language

Portuguese is a Romance language that arose in the medieval Kingdom of Galicia, nowadays Galicia and Northern Portugal. The southern part of the Kingdom of Galicia became independent as the County of Portugal in 1095...

 term for parakeet

Parakeet

Parakeet is a term for any one of a large number of unrelated small to medium sized species of parrot, that generally have long tail feathers...

. The vine thrives in sand

Sand

Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.The composition of sand is highly variable, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal...

y soils but is able to adapt to a variety of conditions. It produces a wine that can be harshly tannic in its youth but softens as it ages. In the Algarve VR

Algarve VR

Algarve is a Portuguese wine region covering the same areas as its namesake region. The region is classified as a Vinho Regional , a designation similar to a French vin de pays region...

, it is often blended with Negra Mole to produce a wine with less aging potential but less harsh in its youth.