The black-eared wheatear is a small passerine, 14–15 cm long, with contrasting plumage: pale grey crown and back, black wings and tail, white throat and a black eye stripe. It inhabits steppes, rocky slopes, scrub and open plains in southern Europe and Western Asia, feeding on insects and spiders on the ground or during low flights. During breeding (April to July), the male performs aerial displays and sings from a perch to attract the female and defend its territory.

The Black Wheatear, Oenanthe leucura, is a bird from the Muscicapidae family. It is predominantly black with a distinctive white tail. Found in arid and rocky regions of southern Europe and northern Africa, this bird is known for its territorial behavior and adaptability to harsh environments. The Black Wheatear primarily feeds on insects and small invertebrates. It nests in crevices or holes in rocks, typically laying 4 to 5 eggs. Although its habitat is sometimes threatened by human activity, it is currently classified as of least concern by the IUCN.

The Black-headed Trogon is a colorful bird found primarily in the tropical and subtropical forests of Central and South America, notably in Mexico, Honduras, Costa Rica, and Panama. It typically measures about 25 to 30 cm in length and weighs between 90 and 120 g. Its plumage is especially vibrant, with a black head contrasting with a brightly colored body, primarily green and red. The Black-headed Trogon primarily feeds on fruits, berries, and small insects. It is often observed in dense forests, where it enjoys perching on tree branches. While its population remains relatively stable, it is sometimes threatened by deforestation and the loss of its natural habitat.

The Baird's Trogon is a fascinating bird, endemic to the humid tropical forests of Central America, particularly in Costa Rica and Panama. This trogon is distinguished by its striking plumage, with a metallic green back, bright red chest, and white belly. It is often observed silently perched in the canopy, feeding mainly on insects and fruits. Although discreet, its melodious song echoes through the forest, signaling its presence. Unfortunately, deforestation threatens its habitat, making it vulnerable. Conservation efforts are crucial to ensure its survival. This bird is a symbol of the biodiversity of tropical forests and an indicator of the health of these ecosystems.

The Petrogale penicillata, commonly known as the brush-tailed rock-wallaby, is a medium-sized marsupial distinguished by its long, bushy tail resembling a brush. Native to Australia, it primarily inhabits rocky and rugged regions where it can move with agility thanks to its powerful legs and sharp claws. Its fur is generally gray-brown with lighter shades on the belly, allowing it to blend into its surroundings. This wallaby is mainly nocturnal, resting in crevices during the day. Unfortunately, it is threatened by habitat loss and predation by introduced species.

The Bennett's wallaby is a small herbivorous marsupial, 70–100 cm long and 7–20 kg, with pale grey-brown fur. It inhabits open woodlands, grasslands and scrub in southeastern Australia and Tasmania, feeding on grasses and young shoots. During the breeding season (January 1 to March 31), males establish territories and perform bipedal hopping displays to attract females.