Yellow Warblers are uniformly yellow birds with a penchant for insects, especially caterpillars and insect larvae. In winter, they may also enjoy some fruit. Female yellow warblers can recognize foreign eggs in their nests. In response, they will rebuild an entirely new nest on top of all the eggs and the old nest. Fun fact: Yellow Warblers exhibit remarkable egg recognition and nesting behaviors.

Magpies are intelligent birds found in temperate regions worldwide, including Tibet and Kashmir. These versatile birds serve as scavengers, predators, and pest-destroyers, often showcasing a challenging, almost arrogant attitude. They are known for their remarkable nest-building skills and unique self-recognition in mirrors. Fun fact: Magpies are celebrated for their intelligence and self-awareness.

Quetzals, found in Central America, are strikingly colored birds with iridescent green or golden-green wing coverts, back, chest, and head, complemented by a red belly. Their wings are suited for camouflage under rainy conditions, blending seamlessly with wet and shiny green areas. Fun fact: Quetzals are known for their vibrant plumage and camouflage abilities.

The common Blackbird, also called the Eurasian Blackbird, is a species of true thrush. They are territorial birds, strongly defending their territories, especially in urban areas. Both males and females have similar appearances, with striking black plumage. Females may also engage in fights to protect nest sites. Fun fact: Blackbirds are known for their territorial nature and complex urban lives.

Hornbills are a family of birds found in tropical and subtropical regions of Africa and Asia. They are characterized by a long, down-curved bill, often brightly colored, and occasionally featuring a casque on the upper mandible. The most distinctive feature of hornbills is their heavy bill, supported by powerful neck muscles and fused vertebrae, aiding in various functions from fighting to preening. Fun fact: Hornbills are celebrated for their distinctive bills and powerful neck muscles.

Hummingbirds are tiny, measuring just 5-10 centimeters in size, making them the smallest birds globally. They have a high metabolic capacity and can regulate it as needed. These delicate creatures are highly sensitive to visual and audio communications. They are known for their nectar-sucking behavior from flowers and their penchant for insects. Fun fact: Hummingbirds are the smallest birds in the world with astonishing metabolism and agility.