Hood (birds)

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Crested tit

The term hood or den in ornithology refers to an erectable head of feathers on the head of birds . The hood is a special design of the spring . The hood springs are converted crown springs.

A seasonal dimorphism of the dress, i.e. H. a periodic change between splendid and resting dress is widespread in birds. Some species therefore only wear a hood in their splendid plumage, such as the great crested grebe . The hood can be found in both females and males. It can be drooping (e.g. in the tufted duck ), double-sided, crown-like (e.g. in the harpy ), fan-shaped (e.g. in the hoopoe ), divided into two parts (e.g. in the great crested grebe) or curved like a roof Flags (e.g. in the Inca cockatoo ) should be formed.

Pigeon breeding

In the breed of pigeons a distinction is made between different hood-shaped spring structures.

The pointed hood or pointed cap is characteristic of some colored pigeons and gulls . With this plumage formation, the upward growing feathers of the back of the neck and the nape end at the back of the head in an upright, upwardly converging hood.

The round hood arches around the back of the head and reaches up to the eyes. Shell , transverse and scoop hoods close on both sides of the auditory canals with a spring vortex, the rosette . They are typical breed characteristics of different color and trumpeters .

  • Basic type with smooth headedness

  • Pointed hood

  • Shell hood

Purebred poultry farming

Various hood-shaped spring structures are also used in poultry breeding .

literature

  • Hans-Hainer Bergmann: The biology of the bird. AULA-Verlag, Wiesbaden 1987, ISBN 3-89104-447-X .
  • Wolf-Dieter Busching, with contributions by Manfred Niecke and Karsten Neumann: Handbuch der Gefiederkunde Europäische Vögel. Volume 1, AULA-Verlag, Wiesbaden 1997, ISBN 3-89104-570-0 .
  • Kurt Vogel: The pigeon . Berlin 1984, p. 30 f.
  • Joachim Schütte: Handbook of the pigeon races. The pigeon breeds in the world . 1994, ISBN 978-3980150446 .
  • HK-Verlag (Ed.): Tauben Lexikon , accessed on February 12, 2013.