The genus Ptyonoprogne is closely related to the larger swallow genus Hirundo, and is sometimes included within it since the nests of the Ptyonoprogne crag martins resemble those of typical Hirundo species like the barn swallow.
The genus Ptyonoprogne is closely related to the larger swallow genus Hirundo into which it is often subsumed, but a DNA analysis showed that a coherent enlarged Hirundo genus should contain all the mud-builder genera.
The genus Ptyonoprogne is closely related to the larger swallow genus Hirundo, but a DNA analysis showed that a coherent enlarged Hirundo genus should contain all the mud-builder genera.
(l in pug, & lit).. D. J. R. Ogilvie (USA): Casually shoot at a swift or large swallow ascending?
The adult African river martin is a large swallow, 14 cm (5.6 in) long.
The African river martin is a large swallow, mainly black with a blue-green gloss to the head and a greener tint to the back and wings.
Very few swallows now roost in the Bueng Boraphet reedbeds, preferring sugarcane plantations, and, despite searching, the white-eyed river martin has not been found in other nearby large swallow roosts.
Very few swallows of any kind now roost in the Bueng Boraphet reedbeds, preferring sugarcane plantations, and, despite searching, the white-eyed river martin has not been found in other nearby large swallow roosts.
Hemingway took several large swallows and said he gets along fine with animals, sometimes better than with human beings.
So far, the EU's strict environmental laws have been on the villagers' side: Doel is, among other things, home to one of Europe's largest swallow colonies.
The focus is towns and cities in this week's programme, with a report from North America about their largest Swallow, the Purple Martin.
