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The giant hawker (Tetracanthagyna plagiata) or the gigantic riverhawker, is a species of dragonfly in the family Aeshnidae. It is found throughout Sundaland, having been recorded on Thailand, Peninsular Malaysia, Singapore, Sumatra, and Borneo. It is the type species for the genus Tetracanthagyna.
The migrant hawker (Aeshna mixta) is one of the smaller species of hawker dragonflies. It can be found away from water but for breeding it prefers still or slow-flowing water and can tolerate brackish sites. The flight period is from July to the end of October. A. mixta occurs in North Africa, southern and central Europe to the Baltic region.
Dunkle, S.W. (2000) Dragonflies through Binoculars: A Field Guide to Dragonflies of North America. New York:Oxford University Press. Mead, Kurt. (2009) Dragonflies of the North Woods, Second Edition. Duluth, MN:Kollath+Stensaas Publ.
The common hawker, [2] moorland hawker [1] or sedge darner [1] (Aeshna juncea) is one of the larger species of hawker dragonflies. It is native to Palearctic (from Ireland to Japan) and northern North America. The flight period is from June to early October. It is 74 millimetres (2.9 in) long with a brown body.
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Aeshna isoceles (or isosceles) is a small hawker dragonfly that is found in Europe, mostly around the Mediterranean, and the lowlands of North Africa. Its common name in English is green-eyed hawker. In the United Kingdom it is a localised species, and is called the Norfolk hawker.
The adults of the southern hawker feed on various insects, caught on the wing. This is an inquisitive species and will approach people. [5] These dragonflies breed in still or slow-flowing water. The males are often seen patrolling by a ponds edge or river, where they fight away intruders, crashing into rival males and spiralling through the air.
Sightings posted to 2024’s migration map began in late January, according to the birding website. People can submit their hummingbird sightings to contribute to these maps.