Garrulus

Garrulus is a genus of passerine birds in the family Corvidae, commonly known as jays. It contains several species, the most familiar being the Eurasian jay (Garrulus glandarius). The genus name Garrulus derives from Latin garrulus, meaning talkative or chattering, reflecting the vocal behavior of many members.

Description: Adults of Garrulus glandarius are medium-sized passerines, about 34-39 cm long, with a pinkish-brown body, black crown and nape, white throat patch, and striking blue and black wing patches with white spots. The tail is dusky, and juveniles are duller with less distinct wing markings.

Distribution and habitat: The Eurasian jay is widely distributed across Europe and temperate Asia, from Spain and the British Isles to Mongolia and northern India. It favors broadleaf and mixed forests, often near woodland edges, parks, and orchards. Habitat flexibility allows expansion into urban areas.

Diet and behavior: Garrulus species are omnivorous, feeding on seeds, nuts (notably acorns), insects, small vertebrates, and eggs. They are known for food caching and partial caching strategies to survive winters. They are intelligent, wary birds with a loud, varied repertoire of calls and occasional mimicry.

Reproduction: Mating pairs typically build a cup-shaped nest in trees. Clutch size ranges around 4-7 eggs, glossed with pale blue or green and dark spots. Incubation lasts about 16-19 days; fledgling occurs after roughly three weeks.

Conservation: The genus is not considered globally threatened; the Eurasian jay has a widespread, stable population, though local declines may occur due to habitat loss or severe winters.