The blue marsh hawk belong to the dragonfly family of skimmers, and are conspicuous with their blue thorax and tail.
Dragonflies, especially the males of some species, are also territorial in nature. Research shows that among some marsh skimmers, the males with longer hind wings have an upper hand in winning territorial conflicts.
Species: orthetrum glaucaum, Family: libellulidae
Here are a few other skimmers from our earlier articles:
Pied Paddy Skimmer, neurothemis tullia
Fulvous Forest Skimmer, neurothemis fulvia
Common Picture Wing, rhyothemis variegata variegata
Kasuya E., Mashima Y., Hirokawa J. 1987 Reproductive behavior of the dragonfly, Orthetrum japonicum (Odonata: Libellulidae). Journal of ethology 5(2), 105-113.