The Ermine is a small carnivorous mammal of the weasel family, easily recognizable by its immaculate white winter coat, which contrasts with its black-tipped tail. It measures about 25 to 35 cm in length, with a tail that can reach up to 10 cm, and weighs between 100 and 350 g. During the summer, its coat is typically brown with a lighter belly, but it turns completely white in winter, except for the black tip of its tail. The Ermine primarily inhabits forests, grasslands, and mountainous areas across Eurasia and North America. It is an excellent hunter, feeding mainly on small mammals such as mice, voles, but also on birds and eggs. The Ermine uses its hunting skills to capture prey with great agility and speed. While it is not endangered, the Ermine can be affected by habitat loss and climate change, particularly affecting the color of its fur.

The Grey Heron is a large wading bird, easily recognizable by its slender silhouette, long neck, and large legs. It stands about 90 cm tall, with a wingspan of 1.5 to 1.9 meters, and weighs between 1.5 and 2 kg. Its plumage is primarily gray, with white markings on the belly and underside of the wings, and a white head adorned with distinctive black feathers. It has a long, pointed yellow beak, adapted for capturing its prey, primarily fish, amphibians, insects, and occasionally small mammals. The Grey Heron inhabits wetlands, marshes, rivers, and lakes across Europe, Asia, and North Africa. It is an excellent hunter, patiently waiting by the water's edge to capture its prey with its beak. Although the species is not endangered, it can be vulnerable to water pollution, habitat loss, and human disturbance.

The capped heron, or Pilherodius pileatus, is an elegant and distinctive bird, recognizable by its black head contrasting with its white body and long blue bill. It primarily inhabits the humid tropical forests of Central and South America, often near slow-moving rivers and swamps. This solitary bird is often seen fishing, using its patient hunting technique to catch fish and small invertebrates. Its breeding season varies by region but is generally associated with the rainy season when food is abundant. Although its conservation status is currently stable, deforestation and habitat loss pose potential threats to its populations.

The Indian pond heron is a small heron of about 45 cm, with buff-brown plumage and white flight feathers visible in flight. It inhabits freshwater wetlands, rice paddies and riverbanks, standing motionless before striking fish, amphibians and insects with a quick bill thrust. During breeding, it builds a stick nest in waterside shrubs and the male performs courtship displays by raising neck feathers.

The Whistling Heron, Syrigma sibilatrix, is an elegant and distinctive bird, recognizable by its pastel-colored plumage and long, graceful neck. It features a blue-gray head with a black crown, while its body displays shades of beige and pink. This heron is often found in wetlands, marshes, and flooded grasslands of South America, where it primarily feeds on small fish, insects, and crustaceans. Its name comes from its characteristic call, a melodious whistle that echoes through its natural habitat. Although generally solitary, it can be seen in small groups during the breeding season.

The Cattle Egret is a small heron with primarily white plumage, featuring touches of yellow on the neck and head during the breeding season. It measures about 55 to 60 cm in length, with a wingspan of 90 to 100 cm, and weighs between 300 and 500 g. This heron is notable for its social behavior, often seen in the company of large herds of cattle or near farm animals, hence its name "cattle egret." It takes advantage of the presence of these animals to hunt insects, worms, and other small animals disturbed by the movement of livestock. The Cattle Egret primarily inhabits Africa, Asia, and parts of Europe, such as the Mediterranean. It feeds mainly on small invertebrates, insects, and occasionally small fish, and is particularly efficient in agricultural and wetland areas. Although the species is widely spread, it may be vulnerable to habitat loss and changes in farming practices.

The Purple Heron is a large wading bird, easily recognizable by its colorful plumage, ranging from purple to reddish, with shades of brown and blue. It measures about 80 to 100 cm in length, with a wingspan of 1.3 to 1.5 meters, and weighs between 600 and 1,200 g. Its beak is long, thin, and pointed, with a yellowish-green color, while its legs are long and gray. During the breeding season, the Purple Heron sports decorative plumes on its head and neck. It primarily inhabits wetlands, marshes, rivers, and lakes across Europe, Africa, and Asia, where it feeds on fish, crustaceans, small mammals, and occasionally insects. It primarily hunts at night or during twilight, using its great agility to capture prey in the water. Although the species is not immediately endangered, it is vulnerable to habitat loss, water pollution, and human disturbance.

The Striated Heron, or Butorides striata, is a small heron with predominantly grey-green plumage, a black cap, and yellow legs. It is often seen in wetlands, mangroves, and along rivers. This heron is an opportunistic feeder, primarily consuming fish, insects, and small crustaceans. It employs a unique hunting technique, remaining still before quickly striking its prey. Although generally solitary, it can sometimes be seen in small groups. Its ability to adapt to various aquatic habitats allows it to inhabit a wide range of geographical regions, from tropical to temperate areas.

The Short-eared Owl is a small nocturnal raptor, easily recognizable by its pale yellowish plumage and large, piercing yellow eyes. It measures about 34 to 40 cm in length, with a wingspan of 80 to 95 cm, and weighs between 180 and 400 g. Its face is disc-shaped, like that of other owls, and its plumage, which is cream or brown, is speckled with dark spots that provide excellent camouflage in the grasslands and marshes where it resides. The Short-eared Owl primarily inhabits open areas, such as marshes, grasslands, and farmland, across Europe, Asia, and North America. It mainly hunts small mammals, such as voles and mice, as well as birds and insects. This raptor is an excellent nocturnal hunter, using its very sensitive ears and sharp vision to locate prey in the dark. Although the species is not immediately endangered, it is vulnerable to habitat loss, water pollution, and human disturbance.

The Long-eared Owl is a medium-sized nocturnal raptor, easily recognizable by its large tufts of feathers shaped like "ears" on its head. It measures about 35 to 40 cm in length, with a wingspan of 85 to 100 cm, and weighs between 250 and 400 g. Its plumage is generally gray or brown with dark banded patterns, allowing it to blend perfectly in wooded and open forest areas. It has large yellow eyes and a disc-shaped face, like other owls, which helps it capture sound in the dark. The Long-eared Owl primarily inhabits forests, woodlands, and heathlands across Europe, Asia, and North Africa, where it primarily feeds on small mammals, such as voles, mice, and occasionally birds. It generally hunts at dusk, using its sharp vision and keen hearing to detect its prey. While the species is not endangered, it is vulnerable to deforestation and habitat loss.

The Striped Owl, or Asio clamator, is a medium-sized nocturnal raptor known for its prominent ear tufts and brown and white streaked plumage. It primarily inhabits wooded areas and savannas in Central and South America. This owl is an opportunistic hunter, feeding mainly on small mammals, birds, and insects. Its flight is silent, allowing it to surprise its prey. Although primarily nocturnal, it can be seen at dawn or dusk. The Striped Owl is a solitary bird, except during the breeding season when it forms pairs.

The Common Hippopotamus is a large semi-aquatic mammal, easily recognizable by its massive body and thick skin. It measures between 3.3 and 4.5 meters in length, with a weight reaching 1,500 to 1,800 kg, or more. Its body is primarily gray, with pink skin underneath the belly and ears and eyes positioned high on its head, allowing it to see and hear while submerged in water. Hippos are primarily herbivores, feeding on grass and aquatic vegetation in large quantities, mostly at night. They spend most of their time in the water to regulate their body temperature and prevent dehydration, while still being able to move quickly on land. The Common Hippopotamus primarily inhabits sub-Saharan Africa, in rivers, lakes, and swamps. Although it is a powerful and territorial animal, it is threatened by habitat loss, hunting, and conflicts with human populations.

The Pygmy Hippopotamus is a smaller species of hippopotamus, much smaller than its cousin the Common Hippopotamus, with an adult size measuring about 1.5 to 1.75 meters in length and weighing between 180 and 275 kg. Its coat is gray-olive or dark brown, with smooth and thick skin. Unlike the Common Hippopotamus, the Pygmy Hippopotamus primarily inhabits the forests of West Africa, particularly in Liberia, Sierra Leone, Guinea, and Côte d'Ivoire, and prefers shallow rivers and swamps rather than vast expanses of water. It is primarily herbivorous, feeding on aquatic vegetation and foliage, but unlike its cousin, it does not spend all its time in the water and can be more active on land. The Pygmy Hippopotamus is a nocturnal and solitary species, often elusive and difficult to observe. Although it is less exposed to threats than the Common Hippopotamus, it is still endangered due to habitat loss, hunting, and human disturbance.

The Ethiopian Swallow is a small, graceful bird, identifiable by its metallic blue back and white underparts. It has a forked tail typical of swallows. This species is mainly found in sub-Saharan Africa, frequenting open areas, villages, and towns. It is often seen in flight, hunting insects for food. The Ethiopian Swallow is a partial migrant, moving according to seasons and food availability. It builds a cup-shaped nest with mud, often under building eaves. Its population is stable, and it is not considered threatened.

The house martin is a small migratory bird found mainly in urban and rural areas across Europe, Asia, and North Africa. It is easily recognized by its metallic blue back and its white throat and belly. This swallow builds its nest under roofs, on window ledges, and on building cornices. It primarily feeds on insects, which it catches mid-flight, often chasing swarms of insects at high speed.

The sand martin is a small migratory passerine bird found primarily along rivers, lakes, and wetland areas in Europe, Asia, and North Africa. It is easily recognized by its brown-olive plumage on the back and white on the belly, as well as its social behavior when it gathers in colonies to nest. This small bird primarily feeds on insects, which it captures in flight during its passes over the water.

The Eurasian Crag Martin, or Ptyonoprogne rupestris, is a medium-sized bird belonging to the Hirundinidae family. It is identifiable by its uniform brown-grey plumage, slightly lighter on the belly, and its square tail edged with white spots. This species is often found in mountainous and rocky regions of Southern Europe and Central Asia. It builds its cup-shaped nest under rocky overhangs or bridges, using mud and grass. The Eurasian Crag Martin is an agile insectivore, catching its prey in flight. It is a partial migrant, with some populations moving south in winter. Although its habitat is specific, it adapts well to human structures, contributing to its stable population.

The barn swallow is a small migratory bird found primarily in Europe, Asia, and Africa. It is easily recognizable by its metallic blue back, pointed wings, and deeply forked tail. This bird is often seen flying at high speeds, hunting insects which it catches mid-flight. The barn swallow builds its nest under roofs, in barns, or buildings, and undertakes an impressive long migration each year.

The Hoatzin is a strange and fascinating bird, easily recognizable by its plume crest and distinctive plumage. Native to the tropical forests of South America, particularly in the Amazon Basin, this bird stands out for its leaf-based diet, which it digests through fermentation in its digestive system, a process similar to that of ruminants. It has short wings and prefers to move by hopping through trees or swimming. While not aggressive, the Hoatzin is a shy bird and difficult to observe, often hidden in dense vegetation.

The Great curassow is a large bird of the Cracidae family, easily recognizable by its impressive plumage and crest on its head. It measures approximately 75 to 90 cm in length, with a wingspan of 1.2 to 1.4 meters, and weighs between 2 and 3 kg. Its plumage is mainly brown, with lighter feathers on the belly and distinctive markings on the wings and back. Its head is adorned with a reddish crest, giving it a distinctive appearance. The stone-curling quail mainly lives in the tropical and subtropical forests of Venezuela, Colombia, and Panama. It is often found in mountainous regions, where it frequents wooded areas and rocky slopes. The Stone-curlew is mainly herbivorous, feeding on fruits, seeds, and leaves. It is a terrestrial bird, preferring to move around by walking rather than flying. Although the species is not critically endangered, it is vulnerable to deforestation and loss of its natural habitat.

The Crax alector, commonly known as the Black Curassow, is a large bird from the Cracidae family, native to the tropical forests of South America. It is easily recognizable by its glossy black plumage and distinctive curly crest. Males have a bright yellow beak, while females display more subdued patterns. This bird prefers dense forest habitats where it primarily feeds on fruits, seeds, and insects. Although capable of flight, it spends most of its time on the ground. The Black Curassow plays a crucial role in seed dispersal, aiding in forest regeneration. Unfortunately, it is threatened by deforestation and excessive hunting, leading to population declines in some areas.

The Crax globulosa, commonly known as the Wattled Curassow, is an impressive bird from the Cracidae family. It is distinguished by its glossy black plumage and characteristic crest. Males display a bright red wattle on their beak, particularly visible during the breeding season. This bird primarily inhabits the humid tropical forests of South America, especially in the Amazon. It is often seen near watercourses, where it feeds on fruits, seeds, and insects. Unfortunately, the Wattled Curassow is threatened by deforestation and hunting, leading to a significant decline in its population. Its conservation is crucial to preserving the biodiversity of its natural habitat.

The Helmeted Curassow, or Pauxi pauxi, is a large terrestrial bird from the Cracidae family, primarily found in the humid tropical forests of the Andes in Venezuela and Colombia. It is distinguished by its unique horned crest, which gives it its name. This curassow is black with bluish sheen and a white chest. It feeds mainly on fruits, seeds, and insects. Unfortunately, it is threatened by habitat loss and hunting. Its discreet nature and dark plumage make it difficult to observe in its natural environment. Conservation efforts are crucial to ensure its long-term survival.

The huemul is a species of deer native to the mountains of Patagonia, in Argentina and Chile. It is distinguished by its medium size and graceful antlers. It lives in mountain forests, where it primarily feeds on plants, moss, and bark. Unfortunately, it is classified as endangered due to illegal hunting and habitat loss. The huemul is a symbol of the region's wildlife, but its populations are becoming increasingly rare.

The Sooty Oystercatcher is a medium-sized coastal bird, easily identified by its deep black plumage and bright red bill. It primarily inhabits the rocky and sandy shores of Australia, feeding on mollusks, crustaceans, and other marine invertebrates. Its piercing call is often heard before the bird is seen. While usually observed in pairs or small groups, it can form large colonies during the breeding season. The Sooty Oystercatcher is a sedentary bird, generally remaining loyal to its territory year-round. Its ability to adapt to various coastal environments makes it a resilient species, although some populations may be vulnerable to human disturbances and habitat loss.

The Eurasian Oystercatcher is a coastal bird easily recognizable by its black and white plumage and long orange beak. It measures about 40 to 45 cm in length, with a wingspan of 75 to 85 cm, and weighs between 300 and 400 g. Its beak is long and straight, ideal for digging up shellfish and other mollusks, which it primarily consumes, though it also feeds on worms and marine insects. The Eurasian Oystercatcher primarily inhabits the coasts of Europe, north-west Africa, and parts of Asia. It prefers beaches, estuaries, and mudflats where it can forage at low tide. This bird is very territorial and can be seen in small colonies during the breeding season, but typically lives alone or in small groups outside of that period. Although the species is not immediately endangered, it is sensitive to habitat loss, beach pollution, and human disturbance.

The African Hoopoe, or Upupa africana, is a captivating bird, easily identified by its distinctive crest and black-and-white plumage patterns. It primarily inhabits the savannas and wooded areas of sub-Saharan Africa. This bird feeds mainly on insects, which it captures with its long, slender beak. The African Hoopoe is often seen probing the ground for food and is known for its distinctive "hoo-hoo-hoo" call. While generally solitary, it can be observed in small groups during the breeding season. Its adaptability to various habitats makes it a resilient species, although habitat loss remains a potential threat.

The Eurasian Hoopoe is a bird with a spectacular plumage, easily recognizable by its colorful crest of feathers that it raises in the shape of a tuft on its head. It measures about 25 to 29 cm in length, with a wingspan of 44 to 48 cm, and weighs between 40 and 70 g. Its plumage is primarily light beige, with black and white stripes on the back and wings, and its beak is long, thin, and slightly curved, ideal for probing the ground in search of insects and other small prey. The Eurasian Hoopoe primarily inhabits open areas, such as grasslands, orchards, forest edges, and cultivated areas across Europe, Asia, and North Africa. It mainly feeds on insects, such as ants, termites, and larvae, which it catches by probing the ground. This bird is an excellent flier, capable of flying long distances with powerful wingbeats. Although the species is not endangered, it is vulnerable to habitat loss and the intensification of agriculture.

The Alouatta caraya, commonly known as the black howler, is a primate of the Atelidae family. This monkey is easily recognizable by its black fur in males and golden brown in females. It primarily inhabits the tropical and subtropical forests of South America, notably in Brazil, Argentina, Paraguay, and Bolivia. Black howlers are famous for their powerful calls, audible over several kilometers, used to mark their territory. They live in social groups consisting of several individuals and primarily feed on leaves, fruits, and flowers. Their arboreal lifestyle makes them particularly agile in trees, although they spend much of their time resting to digest their fiber-rich diet.

The brown hyena, or Hyaena brunnea, is a carnivorous mammal native to the arid and semi-arid regions of southern Africa. It is characterized by its long, shaggy coat, which ranges from dark brown to black, and its lighter mane. Unlike other hyenas, it primarily scavenges, feeding on carcasses left by other predators. It is also known for its ability to travel long distances in search of food. The brown hyena typically lives in small family groups but often hunts alone. Although less aggressive than its spotted cousins, it remains wary of humans. Its habitat includes deserts, savannas, and coastal areas.