Cypseloides

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Cypseloides
Soot swift at the Iguaçu Falls

Soot swift at the Iguaçu Falls

Systematics
Class : Birds (aves)
Order : Sailor birds (Apodiformes)
Family : Sailors (Apodidae)
Genre : Cypseloides
Scientific name
Cypseloides
Streubel , 1848

Cypseloides is one of the least explored bird genera in the family of sailors (Apodidae). The genus includes medium-sized to larger sailors, all of whichoccurexclusively on the American continent . The nesting sites are typical of the genus, all species breed near water.

description

All species are medium to black-brown and tend to have paler fletching around the head, especially on the forehead and chin. Despite the lack of clear plumage characteristics in most species of this genus, the Cypseloides species can be used to distinguish them from sympatric sailors of other genera by their characteristic shape . The tail is relatively short and cut straight, at best weakly forked.

Perhaps the most significant is flight. The wing beats are slower than in the smaller genera, but also do not convey the rather relaxed impression of the deep wing beats of the Streptoprocne species. The flight seems rather unsteady, the wings spread out at right angles to the body seem quite stiff and are often directed downwards. The Cypseloides species lack the maneuverability of the related genera somewhat.

The following species are assigned to the genus:

Sibley & Monroe formed two superspecies : niger (consisting of black swift, pectoral swift , Rothschild's swift and smoke swift ) and cryptus (consisting of white- cheeked swift and white- fronted swift ). The diademed swift and the soot swift represent isolated species.

The Phelps and Red-necked Swifts used to be assigned to this genus, but are now assigned to the genus Streptoprocne due to their plumage and other biological characteristics .

literature

  • Phil Chantler, Gerald Driessens: A Guide to the Swifts and Tree Swifts of the World . Pica Press, Mountfield 2000, ISBN 1-873403-83-6

Individual evidence

  1. ↑ Chantler, Driessens: A Guide to the Swifts and Tree Swifts of the World . Page 21f, see literature
  2. ↑ MA Marín and FG Stiles: On the biology of five species of swifts (Apodidae, Cypseloidinae) in Costa Rica. In: Proceedings of the Western Foundation of Vertebrate Zoology. 5: 286-351, 1992

Web links

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