Plain dress

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Birds with saisondimorphen clothes (many types such. As the ducks , sandpipers , gulls and passerines ) carry outside the breeding season a plumage, also resting or winter dress called.

It is obtained by moulting and is usually less conspicuous and not as colorful as the magnificent dress . The differences between the two dresses can range from minor to very pronounced.

Some bird species are difficult to identify in the plain dress because they lack characteristic features. The gender dimorphism can also be significantly lower in the plain dress. Many male birds then have plumage that resembles that of the better camouflaged females.

  • Mallard ( Anas platyrhynchos ) 2 ♂♂, the front of the plumage, back this year, mallards wear their plumage in the summer and go in the fall in the breeding plumage

  • Ruff ( Philomachus pugnax ) in plain dress

  • Star ( Sturnus vulgaris ) in a plain dress

  • An adult black-headed gull ( Larus ridibundus ), the black ear mark behind the eye, which is typical of the plain dress, can be clearly seen

literature

  • Wolf-Dieter Busching: Handbook of the plumage of European birds. AULA-Verlag, Wiesbaden 1997, ISBN 3-89104-570-0 .