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Overview
Transvolcanic jay

Transvolcanic jay

Wikipedia

The Transvolcanic jay is a bird endemic to Mexico.

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Distribution

Region

Central Mexico (Trans-Mexican Volcanic Belt)

Typical Environment

Occurs in montane pine–oak and mixed conifer forests across the Trans-Mexican Volcanic Belt, including states such as Jalisco, Michoacán, México, Morelos, Puebla, and Veracruz. It favors forest edges, open woodlands, and second-growth with substantial oak and pine presence. Birds also use clearings and adjacent scrub, venturing into rural parks or agricultural mosaics. Family groups maintain year-round territories within these upland habitats.

Altitude Range

1500–3500 m

Climate Zone

Highland

Characteristics

Size27–34 cm
Wing Span40–45 cm
Male Weight0.13 kg
Female Weight0.12 kg
Life Expectancy10 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

The Transvolcanic jay is a highly social corvid that often lives in extended family groups and practices cooperative breeding. It is intelligent and adept at caching acorns and pine seeds, remembering many of its hiding spots for later use. Its range is confined to the highlands of central Mexico, where it is a familiar bird of pine–oak forests.

Gallery

Bird photo
Bird photo
Bird photo

Behaviour

Temperament

social and active

Flight Pattern

short rapid wingbeats with brief glides

Social Behavior

Lives in cohesive family groups that defend territories year-round. Exhibits cooperative breeding, with helpers assisting the dominant pair in raising young. Nests are usually placed in trees, and groups often forage together while maintaining contact calls.

Migratory Pattern

Resident

Song Description

Vocalizations include harsh, scolding jay calls interspersed with softer chatters and whistles. Groups use a variety of contact and alarm notes, and individuals can mimic simple sounds in their environment.

Identification

Leg Colorblackish-grey
Eye Colordark brown

Plumage

Smooth, glossy blue head, wings, and tail with a contrasting pale gray mantle and back; underparts are light gray to whitish. Lacks a crest and shows relatively uniform coloration without bold striping.

Feeding Habits

Diet

Omnivorous, taking acorns, pine seeds, berries, and other fruits, along with insects such as beetles, caterpillars, and grasshoppers. It will opportunistically eat eggs or small vertebrates and occasionally visits human areas for scraps. Food caching is common, especially with nuts and seeds, supporting survival through lean periods.

Preferred Environment

Forages from mid-canopy to the ground in pine–oak and mixed conifer forests, especially near oaks producing acorns. Frequently uses forest edges, clearings, and scrubby patches, and may forage along roadsides or rural picnic areas.

Population

Total Known Populationunknown

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