Separating the 3 similar Gulls is easy for adults.
Black-headed Gull has a dark brown head and white marks around the eye but white nape and black wing tips but white tail.
Mediterranean Gull has a jet black hood with white marks around the eye, white wingtips and tail.
Little Gull has black hood extending down nape and no white marks around the eye, white wingtips and white tail but is very much smaller.
The Maroon-bellied Parakeet (Pyrrhura frontalis) is a small parrot found from southeastern Brazil to north-eastern Argentina, including eastern Paraguay and Uruguay. It is also known as the Reddish-bellied Parakeet, and in aviculture it is usually referred to as the Maroon-bellied Conure, Reddish-bellied Conure or Brown-eared Conure. It has been suggested that the Reddish-bellied Parakeet should include the Blaze-winged Parakeet (P. devillei) as a subspecies based on intermediate specimens from Paraguay. But such hybrids are not common in the wild and the two populations generally maintain their integrity; recent sources are undecided on whether to treat them as one species or two.
This Octopus have very long tentacles, hence its name. They are not too colorful although can be very well camouflaged among the sandy bottom. When they swims, they tends to take on the shape of flounders (flat fishes) as a form of mimicry and occasionally, they opens up the webbing around their tentacles as show in the pictures.
The Rufous-capped Motmot (Baryphthengus ruficapillus) is a species of bird in the Momotidae family. It is found in Argentina, Brazil, and Paraguay. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, and heavily degraded former forest.
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.