Hummingbirds are undoubtedly one of the most typical bird groups in the Americas, with its iridescent colors, extraordinary speed, ability to hover in the air and reduced size. The Swallow-tailed Hummingbird is perhaps the most famous member of this group, at least in the non-Amazonian Brazil, probably due to its abundance in urbanized locations, the beauty of its color, the easily recognizable scissors-tail and especially by his abused behavior as it is one of the largest and most quarrelsome hummingbirds. It is also known as Scissorstail hummingbird. It measures between 15 and 19 centimeters in length, one of the largest Brazilian hummingbirds, weighing about 9 grams. Head, neck and upper chest of a deep violet blue; rest of plumage iridescent dark green. Small white spot behind the eyes; dark brown pinions; outer primary raquis extended, although far less evident that the species of the genus Campylopterus; dark blue tail; white shorts; slightly curved down and black beak. Its main characteristic is the long and deeply forked tail that takes almost 2/3 of its total size. Occasionally it has the bluish white feathers dyed forehead, yellow or of different colors, due to the buildup from pollen of the flowers pollinated. The female is almost equal to the male being slightly smaller and paler. Immature is like the female, but the head is particularly paler and dyed brown.
It measures approximately 8.5 cm long. The adult male has a green tuft with darker long plume, clear gray belly with a big blue stain. Birds from the south of State of São Paulo to the south have blue tufts. It is green on the back with black and white in the corners of the brown tail. Young males and females are green on the back and light gray on the belly with a white paint behind the eyes; the beak is short and straight.
For the developers at New York start-up Networked Organisms, smartphones are the butterfly nets of the 21st Century. Their tool, Project Noah, lets people upload photos of plants and wildlife around them, creating a map of the natural world and contributing to scientific research in the process.
Bespectacled scientists of yore would carry around hefty field guides, made up of hundreds of pages of text and photos. But these days, smartphone owners have a lighter option: an app called Project Noah, which aims to help people identify plants and animals as well as collect data from "citizen scientists" about where certain species are located.
Project Noah enables us to be part of a more focused online community where we can learn more about wildlife around us and contribute to scientific research. It pulls participants into deeper, more meaningful engagement by enabling people to go on “missions” to collectively map changes based on sightings.
A modern invention that may also hold the key to saving species in the future. Project Noah is a global study that encourages nature lovers to document the wildlife they encounter, using a purpose built phone app and web community. In addition to the virtual "collection" of species, Project Noah encourages citizen science by linking up with existing surveys including the International Spider Survey and the Global Coral Reef Monitoring Network.