Streptoprocne

Streptoprocne biscutata

Streptoprocne is a species of bird in the family of sailors ( Apodidae ). Three large and two smaller sailors species are placed in this neotropical genus. The two smaller species of the genus, Phelps and Rothalssegler, are a special case, with its bright orange collar in adult plumage at the sailors. These two species were formerly attributed to the genus Cypseloides.

Description

The three major species with a body length of about 22 centimeters can usually be distinguished by its mere size of sympatric species of other genera sailors, the flapping of the wings act powerfully and slowly. A very showy plumage feature is the collar, with the three major types it is white, with the two small it is orange.

The most difficult to distinguish members of the genus are Cypseloides. When visibility is good, the distinction is quite simple due to the plumage characters, only the chest spot sailors also has white plumage shares in the chest. In the height of the wings of the Streptoprocne species look longer and wider, and the tail appears wider.

System

The genus can be assigned the following ways:

• Sailor collar ( Streptoprocne zonaris )
• Sign sailors ( Streptoprocne biscutata )
• White-naped Swift ( Streptoprocne semicollaris )
• Rothalssegler ( Streptoprocne rutila )
• Phelpssegler ( Streptoprocne phelpsi )

Previously, the Rothalssegler and Phelpssegler the genus Cypseloides were attributed.