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Common Green Darner (Anax junius) View in lightbox
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Common Green Darner (Anax junius)

Female Green Darner - green abdomen with a black central dorsal stripe. According to the Animal Diversity Web (maintained by the University of Michigan), the Common Green Darners is found across the entirety of the United States, north into southern Canada, and south into parts of Mexico. Migrants from the north can be found during the winter in Central America, including the Yucatan, Belize, and Veracruz. There are also populations in Hawaii, Tahiti, the West Indies, China, and the Kamchatka peninsula in Russia. Occasionally, common green darners will turn up in Bermuda, the United Kingdom, France, Alaska, and parts of northeastern Asia, but these individuals are carried there by storms or strong winds, and there do not seem to be any established populations in these regions. Some populations of common green darners undertake huge migrations every year. In mid-August to October, large groups move south from Canada and the northern United States to Mexico and other southern regions along coastlines and other areas. They can gather in huge swarms on the coast when migrating south. In these swarms, common green darners can often be found with other dragonfly species, such as variegated meadowhawks. Resident adult populations likely remain in the same general area, staying near the water. Migratory populations have a huge range they travel through. Some travel from southern Canada all the way into Mexico and perhaps even farther. Migrants can move up to 140 km per day. The maximum total migration is 3,000 km, with most averaging a total of about 900 km. Once they reach their destination, they likely stay in the same general area and oviposite in a nearby body of water.

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June 26, 2020 3:25 pm

EXIF

  1. Model NIKON D500
  2. Aperture f/8
  3. Exposure 1/500 sec
  4. Focal length 300mm
  5. ISO ISO 200

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